Pharmacology 4
Flashcards: Pharmacology - Exam 1 (104A)
What type of medications are used to treat Sinusitis?
broad spectrum antibiotics
*sometimes antihistamines, nasal corticosteroid inhalers, analgesics, decongestants and expectorants
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Definitions
List the antiplatelet medications used to treat DVT
1. Aspirin (ASA)
2. ticlopidine hydrochloride (Ticlid)
3. clopidogrel hydrogen sulfate (Plavix)
4. ASA/dipyridamole (Aggrenox)
List the anticoagulant medications used to prevent DVT
1. unfractionated Heparin (low dose subQ)
2. Low molecular weight heparin
3. warfarin (Coumadin)
What do antiplatelet medications do?
prevents platelet aggregatin, thus slowing down clot formation
List the LMWH medications commonly used to prevent DVT
*enoxaparin (Lovenox)
*dalteparin (Fragmin)
*ardeparin (Normiflo)
*tinzaparin sodium (Innohep)
*fondaparinux sodium (Arixtra)
What is Heparin?
An anticoagulant
What is the antidote for Heparin?
Protamine Sulfate
Why is LMWH used over Heparin in some patients?
It has a longer 1/2 half and a more predictable response
What do the patient's Ptt levels need to be at when on Heparin therapy?
therapeutic levels of Ptt need to be 1-1.5 times the normal level
Ex: If Control is 25-35 seconds then the therapeutic level should be 50-70 seconds)
(Ptt levels greater than 70 seconds - notify Physician)
What does warfarin do?
inhibits the synthesis of vitamin K (works in the liver)
what should the INR level be at if a patient is not anticoagulated?
<1
what should the INR level be at if a patient is on therapeutic therapy for DVT?
for patients w/orthopedic surgery or for prevention of emboli in patients w/a-fib: INR 2-3 times control
**for patients w/prosthetic valve prophylaxis: 2.5-3.5 times the control
What type of medications are used to treat Sinusitis?
broad spectrum antibiotics
*sometimes antihistamines, nasal corticosteroid inhalers, analgesics, decongestants and expectorants
What types of medications are used to treat patients w/status asthmaticus?
*potent systemic bronchodilators
*steroids
*epinephrine
*oxygen
*IV fluids
What are the Coricosteroids used to treat asthma?
*anti-inflammatory agents*
INHALED:
1. flunisolide (Aerobid)
2. triamcinolone (azmacort)
3. fluticosone (Flovent)
4. budesonide (Pulmicort)
5. beclomethasone (Qvar)
SYSTEMIC:
*prednisone
What do corticosteroids do?
Decrease the antiinflammatory responses in the airway
What are some side effects of inhaled steroids?
*fungal infections in the mouth (rinse w/water after use)
*headache
What are some side effects of Prednisone?
*Increased blood sugar in diabetics or puts people at risk for diabetes
*insomnia
*increased appetite
List the SHORT ACTING Beta-2 agonists (bronchodilators) used to treat asthma
1. albuterol (Proventil, Accuneb) **most common**
2. levalbuterol (Xopenex)
3. pirbuterol (Maxair)
List the LONG ACTING Beta 2 agonists (bronchodilators) used to treat asthma
1. Salmeterol (Serevent) **most common**
2. formoterol (Foradil)
What do bronchodilators due for asthma patients?
bind to beta 2 agonist receptors in our smooth muscle which results in the relaxation of our airway's smooth muscle
What are some side effects of beta 2 agonists (bronchodilators)?
nervousness, restlessness, tremor, chest pain, insomnia, palpitations
List the combination steroid and long acting beta 2 agonist used for asthma
1. fluticasone/salmeterol (Advair)
2. budesonide/formoterol (Symbicort)
List the Anticholinergics used to treat asthma
1. iprtropium bromide (Atrovent)
2. tiotropium bromide (Spiriva)
List the combination anticholinergic and beta 2 agonists used to treat asthma
1. ipratropium bromide/albuterol (Combivent/Duoneb)
What do anticholinergics do?
Block the parasympathetic pathway and inhibit anticholerginic receptors in our bronchial smooth muscle tissue and produce local bronchodilation
What are the side effects of anticholinergics?
hypotension, headache, nervousness, dizziness
List the Xanthine derivatives used to treat asthma
1. theophylline (Theobid)
2. aminophylline
What should be monitored in patients taking theophylline?
DRUG LEVELS - possible toxicity
Signs of toxicity: nausea, anorexia, stomach cramps, diarrhea, confusion, headache, tachycardia, arrythmias, seizures
What do Xanthine derivatives do?
Relax smooth muscle in bronchial airways.
**Used most often in patients w/needed long-term treatment and control**
List the Mucolytics used to treat asthma
*acetylcysteine (Mucomyst)
*guaifenesin (Humabid)
What is important to tell a patient on Mucolytics?
KEEP HYDRATED
List the anti-inflammatory (mast cell stabilizers) meds used to treat asthma
1. cromolyn (Intal)
2. nedocromil (Tilade)
What do anti-inflammatory (mast cell stabilizers) do?
Prevent the release of histamine and slow reacting substance of aniphylaxis from sensitized mast cells
What are some side effects of mast cell stabilizers?
vertigo, headache, fatigue, chest pain, bronchiospasm, cough, unpleasant taste
List the Leukotriene modifiers used to treat asthma
1. zafirlukast (Accolate)
2. montelukast sodium (Singular)
3. zileuton (Zyflo)
What do Leukotriene modifiers do?
prevent airway edema and smooth muscle contraction
What is important to know about montelukast sodium (Singular)?
It has been know to cause depression and suicidal thoughts (Montel - icide)
What nebulizor medications are used on patients w/asthma?
*Albuterol
*Xopenex
*Atrovent
*Duoneb
Why are nebulizors used?
they provide faster relief than inhalers do
Flashcards: Pharmacology exam 2
Flashcards: Pharmacology - Exam 1 (104A)
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12/39 |
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---|---|
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All 39 terms
Terms | Definitions |
---|---|
List the antiplatelet medications used to treat DVT | 1. Aspirin (ASA) 2. ticlopidine hydrochloride (Ticlid) 3. clopidogrel hydrogen sulfate (Plavix) 4. ASA/dipyridamole (Aggrenox) |
List the anticoagulant medications used to prevent DVT | 1. unfractionated Heparin (low dose subQ) 2. Low molecular weight heparin 3. warfarin (Coumadin) |
What do antiplatelet medications do? | prevents platelet aggregatin, thus slowing down clot formation |
List the LMWH medications commonly used to prevent DVT | *enoxaparin (Lovenox) *dalteparin (Fragmin) *ardeparin (Normiflo) *tinzaparin sodium (Innohep) *fondaparinux sodium (Arixtra) |
What is Heparin? | An anticoagulant |
What is the antidote for Heparin? | Protamine Sulfate |
Why is LMWH used over Heparin in some patients? | It has a longer 1/2 half and a more predictable response |
What do the patient's Ptt levels need to be at when on Heparin therapy? | therapeutic levels of Ptt need to be 1-1.5 times the normal level Ex: If Control is 25-35 seconds then the therapeutic level should be 50-70 seconds) (Ptt levels greater than 70 seconds - notify Physician) |
What does warfarin do? | inhibits the synthesis of vitamin K (works in the liver) |
what should the INR level be at if a patient is not anticoagulated? | <1 |
what should the INR level be at if a patient is on therapeutic therapy for DVT? | for patients w/orthopedic surgery or for prevention of emboli in patients w/a-fib: INR 2-3 times control **for patients w/prosthetic valve prophylaxis: 2.5-3.5 times the control |
What type of medications are used to treat Sinusitis? | broad spectrum antibiotics *sometimes antihistamines, nasal corticosteroid inhalers, analgesics, decongestants and expectorants |
What types of medications are used to treat patients w/status asthmaticus? | *potent systemic bronchodilators *steroids *epinephrine *oxygen *IV fluids |
What are the Coricosteroids used to treat asthma? | *anti-inflammatory agents* INHALED: 1. flunisolide (Aerobid) 2. triamcinolone (azmacort) 3. fluticosone (Flovent) 4. budesonide (Pulmicort) 5. beclomethasone (Qvar) SYSTEMIC: *prednisone |
What do corticosteroids do? | Decrease the antiinflammatory responses in the airway |
What are some side effects of inhaled steroids? | *fungal infections in the mouth (rinse w/water after use) *headache |
What are some side effects of Prednisone? | *Increased blood sugar in diabetics or puts people at risk for diabetes *insomnia *increased appetite |
List the SHORT ACTING Beta-2 agonists (bronchodilators) used to treat asthma | 1. albuterol (Proventil, Accuneb) **most common** 2. levalbuterol (Xopenex) 3. pirbuterol (Maxair) |
List the LONG ACTING Beta 2 agonists (bronchodilators) used to treat asthma | 1. Salmeterol (Serevent) **most common** 2. formoterol (Foradil) |
What do bronchodilators due for asthma patients? | bind to beta 2 agonist receptors in our smooth muscle which results in the relaxation of our airway's smooth muscle |
What are some side effects of beta 2 agonists (bronchodilators)? | nervousness, restlessness, tremor, chest pain, insomnia, palpitations |
List the combination steroid and long acting beta 2 agonist used for asthma | 1. fluticasone/salmeterol (Advair) 2. budesonide/formoterol (Symbicort) |
List the Anticholinergics used to treat asthma | 1. iprtropium bromide (Atrovent) 2. tiotropium bromide (Spiriva) |
List the combination anticholinergic and beta 2 agonists used to treat asthma | 1. ipratropium bromide/albuterol (Combivent/Duoneb) |
What do anticholinergics do? | Block the parasympathetic pathway and inhibit anticholerginic receptors in our bronchial smooth muscle tissue and produce local bronchodilation |
What are the side effects of anticholinergics? | hypotension, headache, nervousness, dizziness |
List the Xanthine derivatives used to treat asthma | 1. theophylline (Theobid) 2. aminophylline |
What should be monitored in patients taking theophylline? | DRUG LEVELS - possible toxicity Signs of toxicity: nausea, anorexia, stomach cramps, diarrhea, confusion, headache, tachycardia, arrythmias, seizures |
What do Xanthine derivatives do? | Relax smooth muscle in bronchial airways. **Used most often in patients w/needed long-term treatment and control** |
List the Mucolytics used to treat asthma | *acetylcysteine (Mucomyst) *guaifenesin (Humabid) |
What is important to tell a patient on Mucolytics? | KEEP HYDRATED |
List the anti-inflammatory (mast cell stabilizers) meds used to treat asthma | 1. cromolyn (Intal) 2. nedocromil (Tilade) |
What do anti-inflammatory (mast cell stabilizers) do? | Prevent the release of histamine and slow reacting substance of aniphylaxis from sensitized mast cells |
What are some side effects of mast cell stabilizers? | vertigo, headache, fatigue, chest pain, bronchiospasm, cough, unpleasant taste |
List the Leukotriene modifiers used to treat asthma | 1. zafirlukast (Accolate) 2. montelukast sodium (Singular) 3. zileuton (Zyflo) |
What do Leukotriene modifiers do? | prevent airway edema and smooth muscle contraction |
What is important to know about montelukast sodium (Singular)? | It has been know to cause depression and suicidal thoughts (Montel - icide) |
What nebulizor medications are used on patients w/asthma? | *Albuterol *Xopenex *Atrovent *Duoneb |
Why are nebulizors used? | they provide faster relief than inhalers do |
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All 90 terms
Terms | Definitions |
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Chlorpromazine | phenothiazine antipsychotic drug |
Thiordiazine | phenothiazine antipsychotic drug |
Trifluoperazine | phenothiazine antipsychotic drug |
Perphenazine | phenothiazine antipsychotic drug |
Fluphenazine | phenothiazine antipsychotic drug |
Chlorprothixene | thioxanthene antipsychotic drug |
Primozide | antipsychotic drug |
Molindone | antipsychotic drug |
Clozapine | atypical antipsychotic drug; agranulocytosis; higher affinity to D4 than D2; weight gain; hyperlipidemia; type 2 diabetes |
Risperidone | atypical antipsychotic drug; prolactin elevation; |
Olanzapine | atypical antipsychotic drug; weight gain; hyperlipidemia; type 2 diabetes |
Loxapine | atypical antipsychotic drug |
Quetiapine | atypical antipsychotic drug |
Ziprasidone | atypical antipsychotic drug; cardiac arrhythmias |
Aripiprazole | atypical antipsychotic drug; lower weight gain; little effect on prolactin level; no extrapyramidal side effects; does not take away sense of pleasure |
Asenapine | atypical antipsychotic drug |
Levadopa | Parkinson's drug; used with carbidopa in form of Sinemet; prevents peripheral decarboxylation of L-DOPA to form DA; converted once inside BBB; alleviates all clinical symptoms of Parkinson's, esp bradykinesia; may cause nausea and vomiting, cardiac stimulation, tachycardia, and postrual hypotension. Depression, delusions, anxiety and agitation |
Selegiline | Parkinson's drug; selective MAO-B inhibitor; retard breakdown of DA; use with L-DOPA |
Rasagiline | Parkinson's drug; selective, irreversible MAO-B inhibitor; retard breakdown of DA; use with L-DOPA |
Entacapone | Parkinson's drug; selective COMT inhibitor; without hepatoxicity; retard peripheral O-methylation of L-DOPA so more reaches brain; shorter action |
Tolcapone | Parkinson's drug; selective COMT inhibitor; present in blood and organs ; use with L-DOPA + carbidopa; FATAL LIVER FAILURE possible |
Bromocriptine | Parkinson's drug; dopaminergic ergot derivative; D2 seletive DA agonist; reserved for patients with on/off symptoms caused by long-term L-DOPA; treat Hyperprolactinemia |
Pergolide | Parkinson's drug; dopaminergic ergot; D1 & D2 agonist; WITHDRAWN due to heart valve damage |
Pramipexole | Parkinson's drug; non-ergot;D2 (some D3) agonist; sudden day time sleepiness; compulsive behavior; treatment for Restless Legs Syndrome (RLS) |
Ropinirole | Parkinson's drug; non-ergot;D2 (some D3) agonist; sudden day time sleepiness; compulsive behavior; treatment for Restless Legs Syndrome (RLS) |
Rotigotine | Parkinson's drug; non-ergot;D3/D2/D1 agonist; transdermal delivery= skin patch; sudden day time sleepiness; compulsive behavior; etc |
Benzotropine mesylate | Parkinson's drug; Anticholinergic; improve tremor and rigidity more than bradykinesia; dry mouth, blurred vision, urinary retention, constipation, tachycardia, drowsiness, inattention, restlessness |
Trihexyphenidyl | Parkinson's drug; Anticholinergic; improve tremor and rigidity more than bradykinesia; dry mouth, blurred vision, urinary retention, constipation, tachycardia, drowsiness, inattention, restlessness |
Procyclidine | Parkinson's drug; Anticholinergic; improve tremor and rigidity more than bradykinesia; dry mouth, blurred vision, urinary retention, constipation, tachycardia, drowsiness, inattention, restlessness |
Diphehydramine | Parkinson's drug; Anticholinergic; improve tremor and rigidity more than bradykinesia; dry mouth, blurred vision, urinary retention, constipation, tachycardia, drowsiness, inattention, restlessness |
Amantadine | antiviral Parkinson's drug; increase DA synthesis/ release; reversible and mild side effects upon withdrawal of drug |
Haloperidol | Butyrophenone antipsychotic drug |
Droperidol | Butyrophenone antipsychotic drug |
Spiroperidol | Butyrophenone antipsychotic drug |
Imipramine | Tricyclic Antidepressant; treat temp. enuresis in children; panic mania disorder; ADHD |
Trimipramine | Tricyclic Antidepressant |
Desipramine | Tricyclic Antidepressant; ADHD |
Clomipramine | Tricyclic Antidepressant; OCD |
Amitriptyline | Tricyclic Antidepressant |
Nortriptyline | Tricyclic Antidepressant; ADHD |
Protriptyline | Tricyclic Antidepressant |
Doxepin | Tricyclic Antidepressant |
Amoxapine | Tricyclic Antidepressant |
Maprotiline | Tricyclic Antidepressant |
Trazodone | Atypical Antidepressant; "Priapism"!!= painful prolonged erection of the penis leading to impotence in males; selective blocker of serotonin uptake; few cardiotoxic or anticholinergic SE; Sedative; |
Nefazadone | Atypical Antidepressant; Hepatotoxicity!! selective serotonin uptake blocker with no anticholinergic or cardiotoxicity effects |
Mirtazapine | Atypical Antidepressant; Agranulocytosis!! effects attributed to central alpha 2 adrenergic receptor antagonism--> increase Serotonin and NE level; weight gain and |
Bupropion | Atypical Antidepressant; (Zyban made for smokers to quit smoking); Seizure!!!! uncertain mechanism |
Fluoxetine | SSRI antidepressant; panic mania disorder; OCD; Eating disorder; |
Sertraline | SSRI antidepressant |
Paroxetine | SSRI antidepressant |
Fluvoxamine | SSRI antidepressant; OCD |
Venlafaxine | SNRI antidepressant |
Citalopram | SSRI antidepressant |
Escitalopram | SSRI antidepressant |
Duloxetine | SNRI antidepressant |
Tranylcypromine | MAO-I Antidepressant; block oxidative deamination of catecholamines and 5-HT by MAO; "The Cheese Effect" = tyramine--> massive NE release--> hypertensive crisis |
Phenelzine | MAO-I Antidepressant; "The Cheese Effect" = tyramine--> massive NE release--> hypertensive crisis |
Isocarboxazid | MAO-I Antidepressant; "The Cheese Effect" = tyramine--> massive NE release--> hypertensive crisis |
lithium salt | Bipolar treatment; corrects sleep disorder; complete absorption from GI; urine elimination; low therapeutic index; monitor blood for lithium intoxication (sodium depletion); oral route; |
Carbamazepine | anticonvulsant for bipolar; anti-manic/depressant |
Valproic Acid | anticonvulsant for bipolar; mood stabolizing; often combined with Li |
Lamotrigine | anticonvulsant for bipolar; long-term stabilizing effects; |
Nitrous Oxide | Gaseous General Anesthetics; Potency very low, never used alone, cannot produce surgical anesthesia (high MAC). Analgesic potency very high. Primary anesthetic can be reduced by 50%. No serious side effects but does induce nausea and vomiting. Reversible megaloblastic anemia due to low Vitamin B12. |
Cyclopropane | Gaseous General Anesthetics; Obsolete: explosive and flammable; Potent; Cardiac arrhythmia |
Diethyl ether | General Anesthetics volatile liquid anesthetics; Obsolete: explosive and flammable; Slow, potent;Good analgesic; Nausea and vomiting after recovery; Salivation and respiratory secretion: muscarinic/cholinergic blocker used to stop |
Halothane | General Anesthetics volatile liquid anesthetics; Moderate speed, extremely potent; Safe; corrodes metal and reacts with rubber; Good hypnotic; poor analgesic/ muscle relaxant; Bradycardia; sensitize heart to catecholamines-->tachyarrhythmia; Caution with Epinephrine! Depress respiration; Halothane hepatitis Malignant hyperthermia - dandrolene = block Ca2+ release = antidote; Pediatric anesthesia= safe in children and infant ; Use with N20 (for analgesia); Elimination: exhalation |
Methoxyflurane | General Anesthetics Obsolete: nephrotoxicity Slowest, most potent Sweet vapor Less cardiac respiratory depression than halothane Better analgesic and muscle relaxant Low dose given discontinuously do not cause F- toxicity Used during first stage of labor Elimination: liver metabolism free F- renal failure |
Enflurane | General Anesthetics Moderate speed; potent Sweet vapor Use with N2O (for analgesia) Better muscle relaxant than halothane Elimination: exhalation; small portion liver metabolism>free F- > may cause renal toxicity in lengthy procedures Seizure possibility; avoid use in seizure prone individuals Nausea and vomiting in recovery |
Isoflurane | General Anesthetics Most used inhalation anesthetics Isomer of enflurane No cardiac depression/sensitization of myocardium/ seizure No renal toxicity |
Desflurane | General Anesthetics Successor to isofurane Extremely fast No metabolism toxicity free |
Sevoflurane | Like other halogenated agents Little metabolism some renal toxicity; no perm. Damage |
Methohexital sodium | General Anesthetics Ultra short acting Barbiturates Seconds to work Bad analgesics; increase pain level Hypotension; bronchospasm Extensive metabolism (95%) by liver |
thiopental sodium | General Anesthetics Ultra short acting Barbiturates Seconds to work Bad analgesics; increase pain level Hypotension; bronchospasm Extensive metabolism (95%) by liver |
Balanced anesthesia | Barbiturate (or N2O) for hypnosis Opiate for analgesia Neuromuscular blocker for muscle relaxation |
Ketamine | General Anesthetics "special K"; "dissociative anesthesia": immobility, sedation; analgesia; amnesia Unpleasant dreams/hallucination days/weeks after use Ok in children Only used in high risk patients who cannot use vapor anesthetics |
Propofol | General Anesthetics New and popular Fast action Clear-headed recovery; good for outpatient use Awake minutes after cessation of drug Profound respiratory depression and hypotension |
Fentanyl | Opioid G.Anesthetics -- analgesia, sedation, respiratory depression + droperidol= Innovar: produce "Neuroleptic" effects; use for minor surgical/diagnostic procedures Slow induction + Nitrous Oxide = unconsciousness |
Alfentanil | Opioid G.Anesthetics -- analgesia, sedation, respiratory depression |
Sufentanil | Opioid G.Anesthetics -- analgesia, sedation, respiratory depression |
Remifentanil | Opioid G.Anesthetics -- analgesia, sedation, respiratory depression Rapid onset (<1min) and ultra-short duration (5-10 min) |
Cocaine | Local anesthetics Topical use only due to pronounced toxicity Block catecholamine reuptake by nerve terminal in CNS/PNS Potentiation of SNS-->vessel constriction; up blood pressure and heart rate Block Dopamine reuptake by A10 dopamine neurons-->euphoria; abuse |
Ethyl aminobenzoate | Local anesthetics Topical use only |
Procaine | Local anesthetics standard; infiltration method slow onset and short duration |
Tetracaine | Local anesthetics slow onset, longer duration greater toxicity and potency than procaine or lidocaine Spinal anesthesia |
Lidocaine | Local anesthetics potent, versatile, faster and longer duration than procaine, more potent often administered with Epi to be rapidly absorbed Sedation and dizziness Cardia antiarrhythmic agent |
Mepivacaine | Local anesthetics Like lidocaine with longer duration; not used topically |
Dibucaine | Local anesthetics Most potent, toxic, and longest acting available as ointment in US |
Bupivacaine | like mepivacaine with longer acting (6-24 hrs) epidural route can cause cardiac toxicities |
Thiothixene | thioxanthene antipsychotic drug |
Flashcards: pharmacology basics
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Flashcards: Pharmacology Exam 2 Part 2
All 80 terms
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Terms | Definitions |
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what is pharmacokinetics | absorption, distribution, metabolism, excretion of drugs by the body |
what is pharmacodynamics | biochemical and physical effects of drugs, and mechanisms of drug actions |
what is pharmacotherapeutics | use of drugs to prevent and treat diseases |
what are the different types of names a drug can have | long chemical, generic, or proprietary/trade/brand |
what different types of grouping are used to classify drugs | pharmacological class or therapeutic class |
what is the pharmacological class | sharing similar characteristics, eg beta-andrenergic |
what is the therapeutic class | grouped by what they're used for eg anti-hypertensives |
what use are buccal/subllingual and lingual administration | prevent alteration in the stomach/ small intestine |
what use is gastric administration | when oral route can't be used |
what use is intradermal administration | allergy, TB tests |
what use is intramuscular adminstration | rapid action, large doses |
what use are IV adminstrations | go into the bloodstream |
which vessels are used for IV | veins |
what use is oral adminstration | cheap, convenient, safe. has to be conscious and able to swallow |
what use are suppositories | local effect, or can be absorbed systemically through mucosa |
what good is the respiratory route | rapid, self administerd metered dose inhaler |
what good is subcut adminstration | more rapid into bloodstream than mouth |
what factors affect absorption rate | route, intestinal factors, liver 1st pass, blood flow to admin site, pain, stress, contents of stomach, drug form, other drugs or food interactions |
what is drug absorption | from adminstration until it becomes available for body use |
what is the distribution phase | process by which the drug is delivered to the tissues and fluids of the body |
what factors are associated with distribution | blood flow, solubility, protein binding |
what part does blood flow play in distribution | highest blood flow (heart, liver, kidneys) get served first |
what part does solubility play in distribution | can drugs cross cell membranes or blood brain barrier |
what role does protein binding play in distribution | binding to protein makes drugs inactive. 80% = highly protein bound |
what is drug metabolism | biotransformation or body's ability to change a drug from its dosage form to water soluble that can be excreted |
what ways are there for drug metabolisis | into inactive metabolites, from one active into a different active metabolite, or from inactive drugs to active |
what are pro drugs | inactive drugs which become active after being metabolised |
where are most drugs metabolised | mostly liver, also kidneys, plasma, intestines |
what can affect metabolism | liver disease, liver circulation, genes, environment, stress, smoke, developmental age |
what is drug excretion | elimination from the body |
where are drugs excreted | mostly kidneys, also lungs, sweat, mammary, intestines, skin |
what is the half life of a drug | time for half of the drug to be eliminated from the body |
what affects the half life | absorption, metabolism and excretion rates |
what is the steady state | rate of drug administration equals rate of excretion |
how long does it take for a drug given once to be completely elimintated | about 4 or half lives |
how long does it take for a regularly administered drug to reach steady state | about 4 or 5 half lives |
Flashcards: Pharmacology Exam 1 (obj. 1-31)
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Terms | Definitions |
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What are the 4 categories of drugs? | -"legend" or prescription drug -OTC or non-prescription drug -investigational drugs -street or illicit drugs |
What can you use if you don't know the name of the drug but you know what it looks like? | PDR (Physician's Desk Reference) |
Chemical name | Precise description that identifies the chemical structure |
Generic name (nonproprietary) | Non-capitalized name of the drug given by United States Adopted Names Council |
Offical name | Usually same as generic name (listed by USP and NF) |
Trade/Brand name (proprietary) | Given by drug company |
Absorption | process of the drug going "from the site of administration, into the body fluid", to the site of action. |
Distribution | process of drug being "carried from site of absorption to site of action" |
Metabolism (biotransformation) | "breakdown of the drug to a water soluble form" for secretion |
Excretion (elimination) | how the drug gets out of the body |
Half-life | the time required for half of the drug to be eliminated from the body |
Examples of mild allergic reactions | rash, headache, vomiting, and nausea |
Example of a severe allergic reaction | anaphylaxis |
Idiosyncratic response | opposite effect of the drug (adverse reaction) |
Drug tolerance | resistance to an effect of a drug so you require a higher dosage. Can be "physical tolerance" or "psychological tolerance" |
Synergistic effect | drugs interact with results greater than their individual actions |
Antagonistic effect | one drug diminishes the action of another drug |
Displacement | 2 drugs, capable of the same function, compete with receptors making them not as effective |
Additive effect | excessive drug effect when taking similar drugs with the same outcome |
Incompatibility | 2 drugs cannot be given together or else the results will be altered |
An example of a drug-food interaction | herbal remedies |
What can influence the drug response in children? | Body weight and immature organs |
What can influence the drug response in the elderly? | Multiple drugs from many resources and decreased kidney function |
How can weight influence the drug response? | A person with increased body weight may need an increase in dosage |
How does gender play a role with drug response? | Males and females have different body composition (males have more muscle than females) |
How can disease effect drug response? | Diseases can affect the client's response to medication by the absorption and distribution |
How long do IV medications take to start affecting a patient? | several minutes |
Which route of administration is the easiest for patients but the slowest to take effect? | orally |
6 rights of the medication administration | Right client, right drug, right dose, right route, right time, right documentation, and the right to refuse |
Which medications should not be crushed? | Extended release pills, buffered coating pills, and enteric-coated pills |
What are the two ways you can check for the right client? | Have the client say their full name and check the client's ID wristband |
If the patient has a nasogastric or G-tube, how should you administer the medications? | Crush the medications (verify if the meds can be crushed) |
If the nasogastric or G-tube is clogged, you should.... | flush the tube with water |
Don't break medications if... | it is not scored |
Needle size of IM injections | -21-23 guage -1 in to 1½ in needle |
Syringe size of ID injections | 1mL |
Angle of subcutaneous injections | 45° angle into the subcutaneous tissue |
Angle of intramuscular injections | 90° angle into the muscle tissue |
Angle of intradermal injections | 10° - 15° angle into the dermis |
Sim's position | Patient lies on their side with one leg bent |
To administer ear drops in young children... | the pinna should be pulled down and back |
To administer ear drops in adults... | the pinna should be pulled up and back |