Download MBBS (Bachelor of Medicine and Bachelor of Surgery) UHS Lahore (University of Health Sciences Lahore) 2nd Year Pharmacology SEQ Previous Year Question Paper
MBBS SECOND PROFESSIONAL
MODEL PAPER FOR ANNUAL 2009
Pharmacology and Therapeutics
(Short Essay Questions)
Max. Marks 70 Time Allowed 2 hours
1.
a) Give one example of a drug that shows the following types of drug
tolerance.
i) Pharmacodynamic tolerance.
0.5
ii) Cross tolerance.
0.5
iii) Pharmacokinetic tolerance.
0.5
b) Explain the basis for alkalinization of urine in salicylate (weak acid)
poisoning.
02
c) Name THREE drugs that exhibit extensive FIRST PASS EFFECT.
1.5
(0.5 Each)
2.
a) Explain the pharmacological basis for the use of the following:
i) Atropine as a pre-anesthetic agent.
1
ii) Dopamine in cardiogenic shock.
1
iii) Prazosin in BENIGN PROSTATIC HYPERPLASIA (BPH).
1
b) Explain why NEOSTIGMINE is preferred to PHYSOSTIGMINE in
MYASTHENIA GRAVIS?
02
3.
a)
i) Describe
THREE
comparative features of
TRICYCLIC
1.5
ANTIDEPRESSANTS and SSRI's.
(0.5 Each)
ii) Explain the result of concurrent administration of MAO-
INHIBITORS and TRICYCLIC ANTIDEPRESSANTS.
01
b)
i) Enlist FOUR features of clozapine in treatment of schizophrenia.
02(0.5 Each)
ii) Why regular monitoring of blood count is required during
clozapine therapy?
0.5
4.
A child was brought to emergency six hours after ingestion of toxic dose
of acetoaminophen with vomiting and diaphoresis. Besides supportive
treatment he was prescribed N-acetylcysteine.
a)
i) What is the rationale of using N-acetylcysteine in this case?
02
ii) Enlist TWO differences between Aspirin and Paracetamol.
0.5, 0.5
b)
i) Name TWO drugs used in CHRONIC GOUT.
0.5, 0.5
ii) Can ALLOPURINOL be given in ACUTE GOUT?
01
5.
A middle aged man with history of frequent attacks of angina on
moderate exertion is put on a regular prophylactic therapy of ?-Blocker
and a nitrate.
a) Explain how a combination of nitrate + ?-blocker will increase
effectiveness and decrease incidence of adverse effects in Angina.
03
b) Mention TWO drugs used in PSVT (Paroxysmal Supra-Ventricular
Tachycardia) and give mechanism of any one of them.
01, 01
6.
a) Enlist electrolytic and metabolic adverse effects of LOOP DIURETICS.
03
b) Explain the basis for the use of MANNITOL in ACUTE CONGESTIVE
GLAUCOMA.
02
7.
a) How do the following produce their beneficial effect?
i) Streptokinase in coronary thrombosis.
1.5
ii) Aspirin in post myocardial infarction patients.
1.5
b)
i) Name low molecular weight Heparins.
01
ii) What is the treatment of Heparin overdose?
01
8.
a) Describe the mechanism of anti-emetic and pro-kinetic effects of
METOCLOPRAMIDE.
1.5,1.5
b) Name TWO:
i) Opiates used as anti-diarrheals.
01
ii) Major irritant laxatives used.
01
9.
A mother brought her ten year old child with complaints of severe
breathlessness, wheezing and cough. She stated that the attacks
occurred in spring season. Case was diagnosed as Bronchial Asthma.
a) Name drugs used to terminate an attack of acute bronchial asthma.
02
b) Enlist common adverse effects of inhaled steroids used in this
disease.
01
c) What prophylactic therapy is advised before the seasonal attack?
02
10. a) Give TWO mechanisms by which resistance may develop to
antimicrobial agents (with one example of a drug for each
mechanism).
02
b) Explain the basis for the following drug combinations.
i) Amoxicillin + Clavulanic Acid.
1.5
ii) Penicillin G + Probenecid.
1.5
11. A 30 years old lady came to medical OPD with a H/O productive cough,
low grade fever, anorexia and weight loss for the last 8 weeks. She was
diagnosed as a case of pulmonary TB and put on Anti-Tubercular
Therapy (4 drugs) by the physician.
a) Explain the pharmacological basis of multi-drug therapy in TB.
03
b) What is the rationale of using pyridoxine with Isoniazid (INH)?
01
c) What is the duration of "Four Drug Regimen"?
01
12. a)
i) Describe the mechanism of action of Azole anti-fungal agents.
02
ii) What is the major use of fluconazole?
01
b) How is interferon effective as an anti viral agent?
02
13. a) Describe the mechanism of action of ALKYLATING AGENTS in
CANCER CHEMOTHERAPY.
02
b) Name TWO agents that cause hemorrhagic cystitis.
01
c) Adverse effects of alkylating agents are seen commonly on which
organs.
02
14. a) Classify and enumerate INSULIN PREPARATIONS.
03
b) What is the rationale for the use of CLOMIPHENE in INFERTILITY?
02
This post was last modified on 04 December 2021