Test Your Knowledge - Free MCQ PRACTICE
PHARMACOLOGY
by Dr K Chaudhry
BIOCHEMISTRY
BIOLOGY
BIOTECHNOLOGY
CHEMISTRY
COMPUTER
ELECTRICIAN
FITTER
GENERALKNOWLEDGE
INSURANCE
MACHINIST
MICROBIOLOGY
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PHARMACOLOGY
PHYSICS
ANATOMY
PHYSIOLOGY
FORENSICMEDICINE
OPERATIVEDENTISTRY
DENTISTRY
PERIODONTICS
PEDODONTICS
ENDODONTICS
COMMUNITYMEDICINE
OPHTHALMOLOGY
ENT
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OBSGYN
PAEDIATRICS
ORTHOPAEDICS
DERMATOLOGY
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PSYCHIATRY
ELECTRONICENGINEERING
DRIVINGTEST
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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