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. Direct effects on the heart are determined largely by:
A. Alfa1 receptor
B. Alfa2 receptor
C. Beta1 receptor
D. Beta2 receptor
2. Most local anesthetics can cause:
A. Depression of abnormal cardiac pacemaker activity, excitability, conduction
B. Depression of the strength of cardiac contraction
C. Cardiovascular collapse
D. All of the above
3. Which of the following benzodiazepines is used mainly for hypnosis?
A. Clonozepam
B. Lorazepam
C. Flurazepam
D. Midazolam
4. Vasodilators work by
A. reducing cardiac afterload.
B. dilating the arterioles of the kidneys.
C. improving circulation to the skeletal muscles.
D. All of these
5. Vasoconstrictors are less effective in prolonging anesthetic properties of:
A. Procaine
B. Bupivacaine
C. Lidocaine
D. Mepivacaine
6. 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
7. What does “pharmacokinetics” include?
A. Pharmacological effects of drugs
B. Unwanted effects of drugs
C. Chemical structure of a medicinal agent
D. Distribution of drugs in the organism
8. Which of the following abused drugs do not belong to sedative agents?
A. Barbiturates
B. Tranquilizers
C. Cannabinoids
D. Opioids
9. The chemical name of Heroin is:
A. Methyldihydromorphinone
B. Dihydromorphinone
C. Diacetylmorphine
D. N-allylnormorphine
10. Contraindications to the use of antimuscarinic drugs are all of the following except:
A. Glaucoma
B. Myasthenia
C. Bronchial asthma
D. Paralytic ileus and atony of the urinary bladder
11. Which of the following intravenous anesthetics has antiemetic actions?
A. Thiopental
B. Propofol
C. Ketamine
D. Fentanyl
12. General contraindications for anticancer drugs are:
A. Depression of bone marrow
B. Acute infections
C. Severe hepatic and/or renal insufficiency
D. All of these
13. Isoproterenol produces all of the following effects EXCEPT:
A. Increase in cardiac output
B. Fall in diastolic and mean arterial pressure
C. Bronchoconstriction
D. Tachycardia
14. Which of the following best description of the drug nicotine?
A. Muscular subtype nicotinic agonist
B. Muscular subtype nicotinic antagonist
C. Neuronal subtype nicotinic agonist
D. Neuronal subtype nicotinic antagonist
15. Adverse effect caused by phenobarbital is:
A. Physical and phychological dependence
B. Exacerbated petit mal epilepsy
C. Sedation
D. All of these
16. Restlessness, anxiety, orthostatic hypotension, generalized seizures, severe tremor, vivid hallucination, and psychosis are possible symptoms of:
A. Tolerance
B. Withdrawal
C. Drug interactions between barbiturate and diazepam
D. None of these
17. Cephalosporines are drugs of choice for treatment of:
A. Gram-positive microorganism infections
B. Gram-negative microorganism infections
C. Gram-negative and gram-positive microorganism infections, if penicillins have no effect
D. Only bacteroide infections
18. The basic structure of a catecholamine involves a catechol ring and which of the following types of amines?
A. Methyl amine
B. Ethyl amine
C. Butyl amine
D. Tert-butyl amine
19. Drug biotransformation phase I makes drugs ____ polar for metabolism and phase II makes drugs ____ polar for excretion.
A. More; More
B. More; Less
C. Less; More
D. Less; Less
20. Which of the following topical ophthalmic drugs is also used for motion sickness? (injection, oral, or transdermal patch)
A. Atropine
B. Scopolamine
C. Homatropine
D. Tropicamide
Dr K Chaudhry 5 Alpha Inmternational City, Fatehabad 125050 M: 9810570740, 9810571993facebook.com/doctorkc