A fresh set of 20 random questions is generated every time you open this page and every time you refresh it.For each of the following multiple choice questions, choose the most appropriate answer :
1. Which of the following drugs is a reversible nonselective alfa, beta antagonist?
A. Labetalol
B. Phentolamine
C. Metoprolol
D. Propranolol
2. Which of the following cholinesterase inhibitors is NOT used for Myasthenia Gravis (MG)?
A. Neostigmine
B. Physostigmine
C. Endrophonium
D. Pyridostigmine
3. Hypothalamic and pituitary hormones (and their synthetic analogs) have pharmacologic applications in three areas, EXCEPT the following:
A. As replacement therapy for hormone deficiency states
B. As drug therapy for a variety of disorders using pharmacologic doses to elicit a hormonal effect that is not present at physiologic a blood levels
C. As a diagnostic tool for performing stimulation tests to diagnose hypo- or hyperfunctional endocrine states
D. As food supplements
4. This drug has a little or no direct effect on chronotropy and dromotropy at normal doses
A. Nifedipine
B. Diltiazem
C. Verapamil
D. All of these
5. Tick the drug belonging to antibiotics-aminoglycosides:
A. Erythromycin
B. Gentamycin
C. Vancomycin
D. Polymyxin
6. The mechanism of both topiramate and felbamate action is:
A. Reduction of excitatory glutamatergic neurotransmission
B. Inhibition of voltage sensitive Na+ channels
C. Potentiation of GABAergic neuronal transmission
D. All of these
7. The vascular phase occurs
A. 10 to 15 minutes before the tissue is injured.
B. 10 to 15 minutes after the tissue is injured.
C. 10 to 15 minutes before the tissue heals.
D. None of these
8. Psilocybin is
A. extracted from Mexican mushrooms.
B. extracted from coca leaves.
C. extracted from coca resins.
D. extracted from the stalk of the coca plant
9. Tick the antimalarial drug influencing tissue schisonts:
A. Mefloquine
B. Chloroquine
C. Quinidine
D. Primaquine
10. The mechanism of stimulant purgatives is:
A. Increasing the volume of non-absorbable solid residue
B. Increasing motility and secretion
C. Altering the consistency of the feces
D. Increasing the water content
11. Patients with ascites or edema would have ____ Vd for hydrophilic drugs, such as gentamicin.
A. Increased
B. Decreased
C. Unchanged
D. Increased or decreased
12. Which of the following barbiturates is an ultra-short-acting drug?
A. Secobarbital
B. Amobarbital
C. Thiopental
D. Phenobarbital
13. Administration of large doses of penicillin to normal persons fails to produce any detectable levels in the cerebrospinal fluid :
A. Measles
B. Meningitis
C. Enteric fever
D. Brucellosis
14. Which of the following opioid analgesics can produce dysphoria, anxiety and hallucinations?
A. Morphine
B. Fentanyl
C. Pentazocine
D. Methadone
15. Streptomycin has the following unwanted effect:
A. Cardiotoxicity
B. Hepatotoxicity
C. Retrobulbar neuritis with red-green color blindness
D. Ototoxicity, nephrotoxicity
16. Although the benzodiazepines continue to be the agents of choice for insomnia, they have:
A. The possibility of psychological and physiological dependence
B. Synergistic depression of CNS with other drugs (especially alcohol)
C. Residual drowsiness and daytime sedation
D. All of these
17. The drug acts in the collecting tubules:
A. Loop diuretics
B. Thiazide diuretics
C. Potassium-sparing diuretics
D. Carbonic anhydrase inhibitors
18. Which medication relieves ear congestion?
A. Allerest
B. Phenergan
C. Novafed
D. All of these
19. All of the following are common adverse effects of calcium channel blockers EXCEPT:
A. Skeletal muscle weakness
B. Dizziness
C. Headache
D. Flushing
20. Enzyme drug used for acute leukemia treatment:
A. Dihydrofolate reductase
B. Asparaginase
C. Aromatase
D. DNA gyrase
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