SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
USMLE/COMLEX Step 1 Pharmacology One Liners
Start Test
Study First
Subjects
:
health-sciences
,
usmle-step-1
,
comlex
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Inhaled anesthetics metabolized by liver enzymes which has a major role in the toxicity of these agents
Thrombocytopenia
Tinnitus - GI bleeding
Halothane and methoxyflurane
Cholinesterase inhibitors
2. May protect against doxorubicin toxicity by scavenging free radicals
Midazolam
CNS depressants
Meperidine
Dexrazoxane
3. Antidepressant having stimulant effects similar to SSRI's and can increase blood pressure
Impair absorption of fat soluble vitamin absorption (A - D - E - K)
Primaquine
Tamoxifen
Venlafaxine
4. Chelating agent used in acute iron toxicity
Deferoxamine
Interferon alpha
Asthma (bronchospastic effects) - diabetes (block signs of hypoglycemia) and peripheral vascular disease
Rhabdomyolysis and Hepatotoxicity
5. Anti - arrhythmic with 15 second duration of action
ACE inhibitors
Additive CNS depression
Adenosine
Rhabdomyolysis and Hepatotoxicity
6. TCA used in chronic pain - a hypnotic - and has marked antimuscarinic effects
Warfarin (PT)
Amitriptyline
Etidronate
Panic attacks - social phobias - bulimia nervosa - and PMDD (premenstrual dysphoric disorder) - OCD
7. SE of nitrates
Act on intestine - delay digestion and absorption of glucose formed from digestion of starch and disacchrides
Postural hypotension - reflex tachycardia - hot flashes - and throbbing headache due to meningeal artery dilation
Liver toxicity
Didanosine
8. Used especially in postmenopausal women - dosage should be 1500 mg
Coma - Convulsions - Cardiac problems (arrhythmias and wide QRS)
Calcium
Aztreonam
Ethanol
9. Metronidazole SE if given with alcohol
L- thyroxine (T4)
REM is decreased
Digibind (also need to d/c digoxin - normalize K+ - and lidocaine if pt. Is arrhythmic)
Disulfiram - like reaction
10. Class of anti - arrhythmics that has a pro - arrhythmic effect (CAST trial) - therefore are used as last line agents
Kidney and liver toxicity - diarrhea
Glucagon
Rifampin - Isoniazid - Pyrazinamide - and Ethambutol
Class IC (flecainide - propafenone - moricizine)
11. Anticancer drug also used in RA - produces acrolein in urine that leads to hemorrhagic cystitis
Iron deiodinates thyroxine
Older antipsychotics
Cortisone and hydrocortisone (equivalent to cortisol)
Cyclophosphamide
12. This beta blocker lacks local anesthetic activity (a property which decreases protective reflexes and increases the risk of corneal ulceration) and used in treating glaucoma
Cocaine and benzocaine
Timolol
Nicotine
Magnesium sulfate
13. For rebound HTN from rapid clonidine withdrawal
Phentolamine
Metformin
Muscarinic blockade (dry mouth - constipation); weak alpha -1 block (orthostatic hypotension); weak hisamine block (sedation)
Bradycardia - SEXUAL DYSFUNCTION - decrease in HDL - and increase in Triglycerols (TG)
14. Major SE of bisphosphonates
Aspirin
Amantadine
Chemical esophagitis
Nandrolone - oxymetholone - and oxandrolone
15. MOA of corticosteroids
Dicyclomine - methscopolamine
inhibit phospholipase A2
Quetiapine
Decrease arterial blood pressure
16. Approved for use in severe pulmonary HTN
Acetazolamide
Allopurinol
PGI2 (epoprostenol)
Hydroxychloroquine
17. Selectivity of a drug for its receptor
Alendronate - etidronate - risedronate - pamidronate - tiludronate - and zoledronic acid
IV diazepam for short term (acute) treatment; phenytoin for prolonged therapy
Insulin release from pancreas by modifying K+ channels
Specificity
18. Non - depolarizing skeletal muscle antagonist that has short duration
Propofol
Metronidazole
Oxytocin
Mivacurium
19. Drug causing depletion of substance P (vasodilator)
Postsynaptic Mu receptors
Ketamine
Capsaicin
Codeine - hydrocodone - and oxycodone
20. Blows DNA (breaks DNA strands) - limiting SE is pulmonary fibrosis
GLUT 4
Bleomycin
Patches - gum - nasal spray - psychotherapy - and bupropion
Angiotensin receptor
21. Toxic effect of anticancer drug can be lessened by rescue agents
Esmolol
Acebutolol - atenolol - esmolol - metoprolol
Nadolol
Rescue therapy
22. Direct vasodilator of arteriolar smooth muscle
GLUT 2
Clomiphene and tamoxifen
Hydralazine
Urinary acidification and activated charcoal or continual nasogastric suction
23. Secondary amines that have less sedation and more excitation effect
Nortriptyline - Desipramine
Adenosine
Affect calcium - potassium - and sodium channels
Efficacy
24. Ultra long acting insulin - has over a day duration of action
inhibits Na+/K+/2Cl - cotransport
Monamine oxidase inhibitors
Glargine (Lantus) - detemir
Ketoralac
25. This produces 'dissociative anesthesia' - is a cardiovascular stimulant which may increases intracranial pressure - and hallucinations occur during recovery
None
Ketamine
Reduce aqueous secretion
PGI2 (epoprostenol)
26. 2nd generation antihistamines
Flutamide (Eulexin)
Methoxyflurane
Clonidine - and methyldopa
Fexofenadine - loratadine - and cetirizine
27. This beta blocker is the longest acting
Haloperidol
Skeletal muscle tremor - tachycardia
Zero order kinetics
Nadolol
28. SE of colchicine
Adalimumab - infliximab and etanercept
Kidney and liver toxicity - diarrhea
Apraclonidine - brimonidine
Reduce the loss from area of injection
29. MOA of lovastatin (STATIN)
Normal C- peptide
Carbidopa
Oxytocin
inhibits HMG COA reductase
30. DOC to treat chemo - induced nausea and vomiting
Orthostatic hypotension (especially with first dose) and reflex tachycardia
Odansetron
Somatrem
Vasodilation
31. Agent for pernicious anemia
Carbamazepine - gabapentin - lamotrigine - and valproic acid
Cyanocobalamin (Vit B12)
Lithium toxicity
Clearance (CL)
32. Except for these agents all SSRI have significant inhibition of CytP450 enzymes
Citalopram and its metabolite escitalopram
Deferoxamine
Diazepam
Blocks peptidoglycan synthesis
33. SE of procainamide
'dry as a bone - red as a beet - mad as a hatter - hot as a hare - blind as a bat'
Asthma (bronchospastic effects) - diabetes (block signs of hypoglycemia) and peripheral vascular disease
AZT (zidovudine)
Lupus - like syndrome
34. DOC for tx of pseudomembranous colitis
Alprazolam
Metronidazole
Indomethacin
Impair absorption of fat soluble vitamin absorption (A - D - E - K)
35. DOC for Legionnaires' disease
prolongs QT and PR interval
Prednisone - methylprednisolone - prednisolone - and triamcinolone
Nondepolarizing type antagonists
Erythromycin
36. Antidote for methotrexate toxicity
Amiodarone
Thyroid and steroid hormones
Leucovorin
Megaloblastic anemia
37. Agent used for anemias associated with renal failure
Ganciclovir - zidovudine - saquinavir - and interferon
Odansetron - granisetron
Somatrem
Erythropoietin
38. Common mechanism by which overdose result in death
Minimum alveolar anesthetic concentration (MAC)
Presynaptic mu - delta - and kappa receptors
Depression of medullary and cardiovascular centers
Labetalol and carvedilol
39. MOA of erythromycin
Inhibition of protein synthesis at the 50s subunit of ribosome
Haloperidol
Inhibiting dihydroorotate dehydrogenase which leads to decreased pyrimidine synthesis - decreased T cell proliferation and decreased antibody production by B cells
Desmopressin (DDAVP)
40. ACE inhibitors are contraindicated in
Ethanol - fomepizole
pregnancy and with K+
SEVERE myelosuppression
inhibits Na+/K+/2Cl - cotransport
41. Agents may exacerbate tardive dyskinesias (may be irreversible and there is no treatment)
Meperidine
Bromocriptine
Asthma (bronchospastic effects) - diabetes (block signs of hypoglycemia) and peripheral vascular disease
Muscarinic blockers
42. Mineralocorticoids
Fludrocortisone and deoxycorticosterone
Vitamin D
Diphenoxylate - Loperamide
Ethanol - fomepizole
43. Moderate opioid agonists
PGI2 (epoprostenol)
Codeine - hydrocodone - and oxycodone
First generation due to being more lipid - soluble
Sotalol
44. The fraction of administered dose of a drug that reaches systemic circulation
Estrogen (HRT- Hormone replacement therapy)
High therapeutic index
Bioavailability (F)
Dantrolene
45. SE of clonidine
Rebound HTN - sedation - dry mouth
Dobutamine and dopamine
Imipramine
Inhibiting dihydroorotate dehydrogenase which leads to decreased pyrimidine synthesis - decreased T cell proliferation and decreased antibody production by B cells
46. DOC for CMV retinitis
Fluphenazine and haloperidol
Pentoxifylline
Fluoxetine
Ganciclovir
47. Hormone inhibiting prolactin release
Neutro - leuko and thrombocytopenia
Dopamine
Bleeding
ACE inhibitors
48. Agents used in treatment of carcinoid tumor
Postsynaptic Mu receptors
Ketanserin cyproheptadine - and phenoxybenzamine
Risperidone
Increasing afterload and tissue perfusion declines
49. SE for ticlopidine
Neutropenia and agranulocytosis
Ethanol
Valproic acid
Olanzapine - aripiprazole - and sertindole
50. New class of drugs that works by inhibiting absorption of intestinal cholesterol and can be given concurrently with the Statins
Midodrine
Ezetimibe (Zetia)
Potential for development of Reye's syndrome
Ketoralac