Karteikarten
Pharmacology VI (100 Flash Cards)

Karten in diesem Stapel (100)
- 1Etiology of angina?insufficient oxygen to meet needs of myocardium

- 2vasodilates coronary arteries to increase O2 supply to heartMOA of nitroglycerin

- 3reduces O2 demand by preventing chronotopic (heart rate) responses to endogenous epinephrine, emotions, and excercise.propranolol MOA for angina

- 4decreases O2 demand by reducing afterload by reducing peripheral resistance via vasodilationMOA of calcium channel blockers for angina

- 5selective alpha 1 blocker. inhibits binding of nerve induced release of NE resulting in vasodilationprazosin MOA

- 6acts as a fake neurotransmitter that stimulates alpha receptors to reduce release of sympathetic outflow resulting in vasodilationmethyldopa MOA

- 7selective for alpha 2 receptors in CNS to reduce sympathetic outflow to peripheral vessels resulting in vasodilationclonidine MOA

- 8nonselective beta blocker reduces cardiac output resulting in vasodilationpropranolol MOA for antiadrenergic

- 9selective beta-1 blocker. reduces cardiac output resulting in vaodilationmetoprolol MOA

- 10Diuretics deal with decreases renal absorption of _____. This causes fluid loss and reduction in blood volume. This decreases the work the heart has to pump.sodium

- 11chlorthiazide is a thiazide diuretic... but what is furesomide?high ceiling or loop acting diuretic

- 12What kind of diuretic is spironolactone?potassium sparing

- 13cardiac glycoside for congestive heart failure?digitalis or digoxin

- 14how are cardiac glycosides effective for congestive heart failure?increasing force of contraction of myocardium.

- 15how do cardiac glycosides increase force of contraction of myocardium?inhibit Na+/ K+ ATPase leading to increase of Ca+ influx.
REDUCES COMPENSATORY CHANGES associated with CHF like increased heart size, edema, etc.
- 16ototoxicity with deafness is a side effect of what diuretic agent?loop diuretic or high ceiling diuretic

- 17nausea, vomiting, yellow-green vissionsymptoms of digitalis toxicity

- 18what drug increases toxic response of digitalis?chlorthiazide

- 19inhibits synthesis of prostaglandinsMOA of aspirin's analgesic effects

- 20inhibits prostaglandin synthesis in the hypothalamic temperature regulation centerMOA of aspirin's antipyretic effects

- 21inhibit synthesis of thromboxane A2 preventing platelet synthesisMOA of aspirin's effect on bleeding time

- 22pain relief, antipyretic, entirheumatic, anti-inflammatorytherapeutic effects of aspirin

- 23occult bleeding from GI tract, tinnitis, nausea, vomiting, acid-base disturbances, metabolic acidosisdecreased tubular reabsorption of uric acid, salciylism, delirium, hyperventilation, etc.toxic effects of aspirin

- 24What does acetaminophen have that aspirin does not?lacks antiinflammatory
is hepatotoxic
does not case GI upset
- 25T/F: anti-inflammatories like prednisone, hydrocortisone, and triamcinolone are steroids that act primarily by PG inhibitionfalse

- 26ibuprofen vs aspirinibuprofen causes much less GI irritation

- 27Diflunisal vs aspirin, acetominophen, ibuprofendiflunisal has a longer half-life than aspirin, acetominiophen, and ibuprofen

- 28alevenonselective COX 1 and 2 inhibitor

- 29acetominophen (aspirin causes reye's syndrome)drug of choice for a feverish child

- 30naloxoneopioid antagonist used to treat morphine overdose

- 31methadoneused in detoxificiation of morphine addicts

- 32T/F: morphine produces respiratory depression, euphoria, sedation, dysphorea, analgesia, constipation, and diuresis.false, everything is true except for diruesis.
Does not cause diuresis, but it causes urinary retention
- 33T/F: morphine produces respiratory depression, euphoria, sedation, dysphorea, analgesia, urinary retention, and diarrheafalse, everything is true except for diarrhea
Does not cause diarrhea, but it causes consitpation
- 34opiod overdose causes coma, miosis, and respiratory depression... What s MOA in respiratory depression?loss of sensitivity of medullary respiratory center to CO2

- 35atropine, scopalamine, and propanthelinecompetitive muscarinic receptor blockers used to control salivary secretions

- 36blocks vagal reflexive control of heart rate, resulting in tachycardiaMOA of atropine

- 37Physostigmine and Neostigmine2 reversible anticholinesterases

- 38What do these symptoms describe? bradycardia, lacrimation salivation, voluntary muscle weakness, diarrhea, bronchoconstrictioncholinergic crisis

- 39how do you treat cholinergic crisis?atropine

- 40What do these symptoms describe? disorientation, confusion, hallucinations, burning dry mouth, hypethermiascopolamine overdose

- 41How do you treat scopolamine overdose?give phyostigmine

- 42How does atopine cause tachycardia?blocks vagal reflexive control of heart rate

- 43neostigminedrug that can stimulate denervated skeletal muscle

- 44most useful drugs to induce salivation is one which ha properties that are ______cholinergic

- 45T/F: cholinergic stimulation causes miosis and increase of intraocularpressurefalse, it does cause miosis but it decreases intraocular pressure

- 46T/F: cholinergic stimulation causes tachycardiafalse, cholinergic stimulation cause bradycardia.
Only from injected cholinergic agents!
- 47cholinergic stimulation causes increased or decreased salivation?increased

- 48T/F: cholinergic stimulation causes acid secretiontrue, that's why it calso causes nausea, vomiting, and diarrhea

- 49cholinergic stimulation causes increased or decreased urinary retention?increased

- 50cholinergic stimulation causes broncho vasodilation or constriction?Broncho-constriction

- 51what happens to skeletal muscle from cholinergic overdose?tremor, ataxia, muscle weakness, cramps

- 52ANTIcholine causes increase or decrease of intraocular pressure?increase of intraocular pressure-> loss of visual accomodation

- 53tachycardiacardiovascular effects of ANTIcholinergic agents

- 54decreased salivation and acid secretionGI tract from anticholergic agents

- 55anticholinergic agents on urinary retention?decreased

- 56T/F: anticholergic angets on skeletal muscles causes muscle relaxationfalse, it does nothing

- 57Which drug gets into the brain and causes restlessness, headaches, excietment, etc.?tertiary amines

- 58_____ ____ like methantheline and propantheline only hve peripheral actionsquaternary amine

- 59What causes xerostomia, anticholinergics or cholinomimetics?anti-cholinergic

- 60how does reserpine inhibit action of adrenergic nerves?depletes NE of adrenergic nerves

- 61how does guanethidine inhibit action of adrenergic nerves?inhibits release of catecholamines

- 62how does alpha methyldopa inhibit action of adrenergic nerves?acts as a centrally fake neurotransmitter which gets taken up into storage and released with NE, decreasing sympathetic activity

- 63how does clonidine inhibit action of adrenergic nerves?stimulates alpha 2 receptors

- 64tyramine, ephedrine, amphetamine release stored NE3 indirect acting sympathomimetic drugs

- 65MOA of TCA and cocaine?block reuptake

- 66block enzyme destructionMAOIs method of action

- 67IN the presence of an alpha blocker, like prazosin, epineohrine would cause a decrease or increase in blood pressure?decrease in blood pressure because the beta mediated vasodilation predominates
EPINEPHRINE REVERSAL
- 68The vagal reflex may decrease heart rate instead of increase heart rate w/dose of epinephrine.. how do we prevent that?give atropine

- 69vasoconsriction, urinary retention, mydriasis3 causes of alpha-1 receptor stimulation

- 70increased heart rate, bronchodilation, vasodilation3 causes of beta receptor stimulation

- 71vasodilationcause of an alpha 1 block

- 72decreased heart rate, bronchoconstriction2 causes of beta block

- 73What's special about isoproterenol?potent bronchodilator because it stimulates beta2 receptors

- 74What does carbidopa do?decreases peripheral metabolism of levodopa

- 75For treating oral infections, penicillin V is preferred to penicillin G because it is a. less allergenic b. less sensitive to acid degradation c. has a greater gram-negative spectrum d. has a longer duration of action e. is bactericidal, whereas penicillin G isntless sensitive to acid degradation

- 76the sole therapeutic advantage of pencillin V over pencillin G is a. greater resistance to penicillinase b. broader antibacterial spectrum c. more reliable oral absorption d. slower renal excretion e. none of the abovemore reliable oral absorption

- 77which of the following penicillins is administered only by deep IM injection?Pen G

- 78which of the following antibiotics is cross allergenic with penicillin and should not be administered to the penicillin sensitive patient? a. ampicillin b erythromycin c. clindamyacin d. lincomycin e. tetracyclinea. ampicillin

- 79which of the following antibiotics may be cross allergenic with penicillin? a. neomycin b. cephalexin c. clindamycin d. erythromycin e. all of the aboveb. cephalexin

- 80which of the following shows an incidence of approx 8% cross allergenicity with penicillins? a. neomycin b. cephalexin c. bacitracin d. vancomycinb. cephalexin

- 81which group of antibiotics is related both structurally and by mode of action with penicillins?cephalosporins

- 82most reliable method of detecting patients allergy to penicillin?thorough med hx

- 83penicillin sub for allergy?erythromycin (***now days is clindamycin)

- 84most anaphylactic reactions to penicillin occur a. when the drug is administered orally b. in patients who have already experienced an allergic reaction to the drug c. in patients with a negative skin test to penicillin allergy d. when the drug is administered parenterally e. within minutes after drug administration i. a, b, and d ii. b, c, and d iii. b, d, and e iv. b and e v. c, d, and eb, d, and e

- 85broader gram negative spectrum than pen G?Ampicillin

- 86BEST gram negative spectrum?Ampicillin

- 87drug of choice for penicillinase producing staph?dicloxacillin

- 88lest effective against penicillinase produce microorganisms?ampicillin

- 89Used to treat pseudomonas??carbenicillin

- 90penicillin is effective against rapidly growing cells is primarily because it blocks what?cell wall synthesis

- 91Chlortetracycline acts by interfering with what?protein synthesis on bacterial but not mammalian ribosomes
**why its selectively toxic
- 92Mechanism of bacteriostatic action of sulfonamides involves what?competition with para-aminobenzoic acid in FOLIC ACID synthesis
**PABA
- 93Sulfonamides act by?inducing a deficiency of folic acid by competition with PABA

- 94tetracycline reduces effectiveness of concomitantly administered penicillin by? a. reducing absorption of penicillin b. increasing metabolism of penicillin c. increasing renal excretion of penicillin d. increasing binding of penicillin to serum proteins e. none of the aboveE. NONE OF THE ABOVE
***tetracycline is BACTERIOSTATIC and would slow the rapid growth of microbes that BACTERIOCIDAL penicillin needs to be effective
***only rapidly dividing cells are making cell walls
- 95action of which drugs will most likely be impaired by concurrent admin of tetracycline?penicillin

- 96Which antibiotic is most likely to cause liver damage?Tetracycline
***streptomycin can cause CNVIII nerve damage affecting balance and hearing ---not associated with liver damage
***penicillins are extremely safe --no effect on liver
***tetracyclines have been shown to be hepatotoxic following high doses in pregnant patients with history of renal disease
- 97which erythromycin is associated with allergic cholestatic hepatitis??erythromycin estolate

- 98which antibiotic least likely to cause superinfection?Pen G
***narrow spectrum
***most likely would be tetracycline or clindamycin
- 99GI upset and pseudomembranous colitis has been prominently associated with a. nystatin b. cephalexin c. clindamycin d. polymyxin B e. erythromycinc. clindamycin

- 100symptoms that may be characterized as allergic manifestations during penicillin therapy aredermatitis, stomatits, bronchoconstriction, and CV collapse

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- Praxis Flashcards: Pharmacology Karteikarten am Pharmacology VI (100 Flash Cards) , erstellt von ACAPUN INSTITUTE am 14/07/2021.
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