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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. Type of kinetics when a constant percentage of substrate is metabolized per unit time
Sulfonamides
First order kinetics
L- thyroxine (T4)
Bone marrow and teeth discoloration for children under 8 years of age
2. Inhaled anesthetics metabolized by liver enzymes which has a major role in the toxicity of these agents
Ethanol
Ketamine
Propranolol
Halothane and methoxyflurane
3. Antiestrogen drugs used for fertility and breast cancer respectively
Carbidopa
Yohimbine
Clomiphene and tamoxifen
Gynecomastia
4. Causes bone marrow suppression
Elderly patients
Meperidine
Cyanocobalamin (Vit B12)
Methotrexate
5. Usual time needed for full effect of antidepressant therapy
2 to 3 weeks
Vancomycin - infusion at a slow rate and antihistamines
Diclofenac - ketoralac
Glucagon
6. Produces both rapid anesthesia and recovery - has antiemetic activity and commonly used for outpatient surgery - may cause marked hypotension
Esmolol
Propofol
Benztropine
Allopurinol
7. Alpha - glucosidase inhibitor associated with elevation of LFT's
Ganirelix
Adalimumab - infliximab and etanercept
Atropine - homatropine - C1208 tropicamide
Acarbose
8. Toxicity of these agents include bradycardia - AV blockade - exacerbation of acute CHF; signs of hypoglycemia may be masked (tachycardia - tremor - and anxiety)
Protamine
Beta blockers
Antithrombin 3
Sodium channel blockers
9. Opioid antagonist that is given orally in alcohol dependency programs
Bile acid - binding resins
Naltrexone
Hallucinations resembling psychosis
Irreversibly blocking cyclooxygenase
10. For rebound HTN from rapid clonidine withdrawal
Clonazepam
Phase I
Phentolamine
Lithium toxicity
11. Most important potential SE of metformin
Lactic acidosis
Hypertensive crisis
IV and IM (only LMW)
AZT (zidovudine)
12. Antihistamine that can be used for anxiety and insomnia and is not addictive
hydroxyzine (Atarax)
Ketoralac
Beta - blockers such as propranolol
Benztropine - trihexyphenidyl
13. Structurally related to acetylcholine - used to produce muscle paralysis in order to facilitate surgery or artifical ventilation. Full doses lead to respiratory paralysis and require ventilation
Neuromuscular blocking drugs
Postural hypotension - reflex tachycardia - hot flashes - and throbbing headache due to meningeal artery dilation
Metronidazole
Rescue therapy
14. Presynaptic Alpha 2 agonist used in HTN - and acts centrally
Levodopa
Positive Comb's test - depression
Clonidine - and methyldopa
Ganciclovir
15. Agent used for anemias associated with renal failure
Oral and transdermal forms of nitroglycerin
Erythropoietin
Pulmonary embolism and DVT
Alendronate - etidronate - risedronate - pamidronate - tiludronate - and zoledronic acid
16. CCB are DOC for
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17. Anti - Parkinson's drug which increases intraocular pressure and is contraindicated in closed angle glaucoma
Levodopa
Alprostadil
Thrombocytopenic purpura - and CINCHONISM
Pregnancy
18. Thyroxine dose may need to be increased in hypothyroid patient during pregnancy because
Physostigmine
Estogens increase maternal TBG
Acute intermittent porphyria
Clomiphene and tamoxifen
19. Endogenous insulin contains
Ototoxicity
Cefuroxime (2nd) generation - Ceftazidime - Ceftriaxone
Normal C- peptide
Ipratropium
20. Indirect - Acting ACh Agonist - alcohol - short DOA and used in diagnosis of myasthenia gravis
Glucagon
Edrophonium
Inhaled anesthetics - especially isoflurane - aminoglycosides - and antiarrhythmic
Older antipsychotic agents - D2 receptors
21. Constant proportion of cell population killed rather than a constant number
Log - kill hypothesis
Gynecomastia hyperkalemia - and impotence
N- acetylcysteine (Mucomyst)
Benztropine
22. Anti - psychotics available in depot preparation
Postsynaptic Mu receptors
Fluphenazine and haloperidol
IV administration
Nesiritide (BNP)
23. Tolerance to all effects of opioid agonists can develop except
Epinephrine
Partial agonist
Miosis and constipation
Aplastic anemia and acute hepatic failure
24. Prevents thrombosis in patients with artificial heart valve
Chlorpheniramine or cyclizine
Dipyridamole
Ephedrine
Liver toxicity
25. SE of procainamide
Lupus - like syndrome
5-7 days
Ceftriaxone or cefuroxime
Degradation of fibrin clots and are administered IV
26. Non - benzodiazepine used as an anxiolytic
Naloxone
Ipodate
Clozapine
Buspirone
27. SE of beta blockers
Ethanol - fomepizole
Bradycardia - SEXUAL DYSFUNCTION - decrease in HDL - and increase in Triglycerols (TG)
SEVERE myelosuppression
Letrozole - anastrozole
28. SSRI indicated for premenstrual dysphoric disorder
Elderly patients
Fluoxetine (Sarafem)
Long - acting sedative - hypnotic or a gradual reduction of dose - clonidine or propranolol
Low potency phenothiazines and ziprasidone
29. Antidote for thrombolytics
Citalopram and its metabolite escitalopram
Esmolol
Thrombocytopenic purpura - and CINCHONISM
Aminocaproic acid
30. Treatments available for nicotine addiction
Caffeine
Beta - blockers such as propranolol
Steady state
Patches - gum - nasal spray - psychotherapy - and bupropion
31. Peakless ling acting insulin
Insulin glargine
Morphine - methadone - meperidine - and fentanyl
Mechlorethamine
Peripheral neuropathy (also excessive alcohol use is associated with HTN - anemia - and MI)
32. Removal of PCP may be aided
Phenoxybenzamine
Competitive antagonist
Urinary acidification and activated charcoal or continual nasogastric suction
Excessive CNS stimulation (seizures)
33. Antivirals that are teratogens
B- blockers
Delavirdine - efavirenz - and ribavirin
Abstinence syndrome
Hydroxychloroquine
34. Agent decreases the excitatory actions of cholinergic neurons. May improve tremor and rigidity but have LITTLE effect on bradykinesia. Atropine - like side effects
Corticosteroids
Benztropine
Tertiary amines
Retinal destruction and dermatitis
35. Inducers of Cytochrome P450 (CYP450)
GFR
Ethanol - Barbiturates - and Benzodiazepines
Barbiturates - phenytoin - carbamazepine - and rifampin
Beta blockers
36. Lethal arrhythmias resulting from concurrent therapy with azole fungals (metabolized by CYP 3A4) and these antihistamines which inhibit the 3A4 iso - enzyme.
Terfenadine and astemizole (have been removed from the market)
Cytomel
Somatostatin
6- mercaptopurine (6- MP)
37. Facilitates GABA presynaptic inhibition
Diazepam
Ethanol
Most are thought to act at GABA- A receptor - chloride channel
Maprotiline
38. Antidote used for organophosphate/anticholinesterase poisoning
Serotonin syndrome
Cytomel
Atropine - pralidoxime (2- PAM)
NO - chloroform - and diethyl ether
39. Class of drugs with ability to decrease the maximal response to an agonist
Noncompetitive antagonist
inhibits HMG COA reductase
Reducing preload
Diphenoxylate - Loperamide
40. Enhances dopaminergic neurotransmission SE's include CNS excitation - acute toxic psychosis and livedo reticularis
Aspirin
Amantadine
Repaglinide
Seizures
41. Drug used in ergot alkaloids overdose - ischemia and gangrene
Somatrem
Levodopa
Nitroprusside
Rebound HTN - sedation - dry mouth
42. Except for these agents all SSRI have significant inhibition of CytP450 enzymes
Heparin induced thrombocytopenia (HIT)
B- blockers
Glyburide - glipizide - and rosiglitazone
Citalopram and its metabolite escitalopram
43. Opioid antagonist that is given IV and had short DOA
Cevimeline
Zollinger - Ellison Syndrome
Naloxone
Aminocaproic acid
44. All opioids except this agent (which has a muscarinic blocking action) cause pupillary constriction
Raloxifene (SERM- selective estrogen receptor modulator)
Meperidine
Increasing afterload and tissue perfusion declines
Ketoconazole
45. SE of demeclocycline
Dextromethorphan - Codeine
Hydration and mercaptoethanesulfonate (MESNA)
Suramin
Bone marrow and teeth discoloration for children under 8 years of age
46. The fraction of administered dose of a drug that reaches systemic circulation
Succinylcholine
Sodium bicarbonate
Block cell wall synthesis by inhibiting peptidoglycan cross - linkage
Bioavailability (F)
47. Agents acting in the CNS or in the skeletal muscle - used to reduce abnormally elevated tone caused by neurologic or muscle end plate disease
Depression of medullary and cardiovascular centers
Dolasetron
Celecoxib and rofecoxib
Spasmolytic drugs
48. GABA agonist in the spinal cord
Reducing progression of heart failure (never use in acute heart failure)
ED50
Baclofen
Prolongs QT interval
49. Short acting glucocorticoids
Flatulence (do not use beano to tx) - diarrhea - abdominal cramps
Cortisone and hydrocortisone (equivalent to cortisol)
Aspirin
L- asparaginase
50. Diuretic used to antagonize aldosterone receptors
Topical mupirocin (Bactroban)
Spironolactone
Nitrous oxide
Flumazenil