Morphine sulphate is:

Appeared in: RUHS, Jaipur, PB B.Sc Nursing Entrance-2020

Explanation

Morphine sulphate is a potent opioid analgesic, which is the prototype drug for its class.
It is a natural alkaloid derived from the opium poppy (Papaver somniferum).
Its primary mechanism of action is as a full agonist at the mu (μ) opioid receptors in the central nervous system (CNS).
This action alters the perception of pain and the emotional response to it, making it effective for severe acute and chronic pain.

Option A: Antiplatelet drugs prevent platelets from clumping together to form a thrombus. Morphine does not have this effect.
Option B: Thrombolytic agents are 'clot-busters' that actively dissolve existing blood clots. Morphine has no thrombolytic properties.
Option C: Anticoagulants prevent the formation of blood clots by interfering with the clotting cascade. Morphine does not affect blood coagulation.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pharmacological classification of Morphine Sulphate as background academic context rather than a clinical decision trigger.
Understanding that morphine is an opioid is critical for safe nursing practice due to its potent effects and risk of serious adverse reactions like respiratory depression.
Nurses must perform a baseline respiratory assessment before administration and monitor respiratory rate, depth, and oxygen saturation frequently thereafter.
A key patient-safety intervention is ensuring the opioid antagonist, Naloxone, is readily available on the unit to rapidly reverse overdose symptoms.

How to Approach the Question

First, identify the drug named in the question stem: 'Morphine sulphate'.
This is a factual recall question that tests your knowledge of pharmacological classifications.
Recall the major drug classes. Think about what you know about morphine's primary use, which is strong pain relief.
Evaluate the given options: Antiplatelet, Thrombolytic, and Anticoagulant are all related to blood clotting and hemostasis.
Opioid is a distinct class of potent pain relievers (analgesics).
Connect the drug (morphine) to its known class (opioid). This makes it the correct answer and eliminates the other options, which belong to a different functional category.

Concept Tested & Keywords

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E6 Pharmacology KD Tripathi Essentials 9e Part 2 pp. 138-140, 134-136

E6 Nursing Brunner Adult Health 3SA Vol 1 Part 3 p. 48-50

Practise the full RUHS, Jaipur, PB B.Sc Nursing Entrance-2020

Attempt every question from this paper in a timed mock, then review the full solution for each one.