All are antidepressants drugs except?

RUHS, Jaipur, PB B.Sc Nursing Entrance-2018

Pharmacology

Easy

Appeared in: RUHS, Jaipur, PB B.Sc Nursing Entrance-2018

Explanation

Thiazides are correctly identified as the exception because they are a class of diuretic medications, not antidepressants.
Their primary use is for managing hypertension (high blood pressure) and edema (fluid retention) by promoting water and salt excretion through urine.
The other three options—Tricyclic antidepressants (TCAs), Monoamine oxidase inhibitors (MAOIs), and Selective serotonin reuptake inhibitors (SSRIs)—are all established classes of drugs used to treat depression.

Option A: This is incorrect because Tricyclic antidepressants (TCAs) are a well-known class of antidepressant medications used to treat depression, although they are less commonly prescribed now due to their side effect profile.
Option B: This is incorrect because Monoamine oxidase inhibitors (MAOIs) are a class of powerful antidepressants. They are typically used when other antidepressants have not been effective.
Option C: This is incorrect because Selective serotonin reuptake inhibitors (SSRIs) are the most commonly prescribed class of antidepressants for treating depression and anxiety disorders.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pharmacological Classification of Drugs as background academic context rather than a clinical decision trigger.
A nurse must be able to differentiate between drug classes to ensure patient safety and prevent medication errors. Administering a diuretic instead of an antidepressant would have serious consequences.
Patient education is a key nursing responsibility. For a patient on an MAOI, the nurse must teach strict dietary restrictions (avoiding tyramine-rich foods) to prevent a hypertensive crisis. For a patient on a thiazide diuretic, education would focus on monitoring for signs of dehydration or electrolyte imbalance (like hypokalemia).
What if? If a patient with depression also has severe hypertension, the physician might choose an antidepressant that has a lower risk of affecting blood pressure and prescribe a thiazide diuretic separately. The nurse's role would be to monitor both the patient's mood and their blood pressure, ensuring both conditions are managed effectively.

How to Approach the Question

First, identify the keyword 'except' in the question. This signals that you need to find the option that does not belong to the specified category.
The category is 'antidepressant drugs'. Your task is to determine which of the four options is NOT an antidepressant.
Review each option based on your pharmacology knowledge:
Tricyclic antidepressants: The name itself indicates it's an antidepressant class.
Monoamine oxidase inhibitors: Recall this as a major class of antidepressants.
Selective serotonin reuptake inhibitors: Recall this as a first-line treatment for depression.

Concept Tested & Keywords

Concept Tested: Pharmacological Classification of Drugs
Stem keywords: antidepressants, drugs
Lead-in keywords: except
Negative lead-in flag: The question uses negative framing ('except') to ask for the option that does not fit the category.

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