INI-CET EXAM -2025
Pharmacology
Easy
False statement about finerenone compared to spironolactone?
Appeared in: INI-CET EXAM -2025
Explanation
- This statement is false because finerenone is a mineralocorticoid receptor (MR) antagonist, not a synthesis inhibitor.
- Its mechanism of action is to block the receptor where aldosterone binds, thereby preventing aldosterone from exerting its downstream effects.
- It does not interfere with the production or synthesis of aldosterone in the adrenal glands.
- Aldosterone synthase inhibitors are a distinct class of drugs that work by reducing the amount of aldosterone produced by the body.
Why Other Options Were Wrong
- Option A: This is a true statement. Spironolactone is a non-selective MRA that also binds to androgen receptors, which is the primary cause of gynecomastia (breast enlargement in males). Finerenone is highly selective for the MR and has minimal affinity for androgen receptors, resulting in a much lower risk of this side effect.
- Option B: This is a true statement. Both finerenone and spironolactone belong to the class of drugs known as mineralocorticoid receptor antagonists (MRAs). They share the same primary target, the MR.
- Option C: This is a true statement. Finerenone is specifically classified as a non-steroidal, selective mineralocorticoid receptor antagonist. This distinguishes it from older, steroidal MRAs like spironolactone and eplerenone.
Related Visual
- Visual 1: Diagram - A diagram comparing the molecular structures of steroidal (spironolactone) and non-steroidal (finerenone) MRAs, highlighting the differences that lead to varied side effect profiles.
- Visual 2: Flowchart - A flowchart illustrating the mechanism of action. One path shows receptor antagonism (finerenone blocking the MR), and a separate path shows synthesis inhibition (a different drug class blocking the production of aldosterone).
Clinical Relevance
- Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pharmacology of Mineralocorticoid Receptor Antagonists (MRAs) as background academic context rather than a clinical decision trigger.
- The development of selective, non-steroidal MRAs like finerenone is clinically significant for improving patient adherence and quality of life. Nurses should be aware that finerenone offers an alternative for patients, particularly males, who cannot tolerate the endocrine side effects (like gynecomastia or impotence) of spironolactone.
- Finerenone is specifically approved to reduce the risk of sustained eGFR decline, end-stage kidney disease, cardiovascular death, non-fatal myocardial infarction, and hospitalization for heart failure in adult patients with chronic kidney disease (CKD) associated with type 2 diabetes (T2D).
- What if? If a male patient on spironolactone for heart failure complains of painful gynecomastia, the nurse should anticipate a discussion with the healthcare provider about switching to a more selective MRA like finerenone or eplerenone to manage the condition while maintaining therapeutic benefits.
How to Approach the Question
- First, identify the core task: you need to find the single FALSE statement among the four options comparing two drugs.
- This means three of the statements are true facts about finerenone and spironolactone.
- Analyze each option as a distinct claim. Focus on keywords like 'causes more', 'both are', 'is a', and 'inhibits synthesis'.
- Recall or look up the fundamental pharmacology of this drug class. Mineralocorticoid receptor antagonists work by ANTAGONIZING (blocking) the receptor.
- Critically evaluate the term 'inhibits synthesis'. This describes a different mechanism of action—stopping the production of a substance, not just blocking its effect.
- Compare this with the other statements about side effects (gynecomastia) and classification (non-steroidal, selective), which are common points of comparison for these drugs.
Concept Tested & Keywords
- Concept Tested: Pharmacology of Mineralocorticoid Receptor Antagonists (MRAs)
- Stem keywords: finerenone, spironolactone, false statement
- Lead-in keywords: False statement
- Negative lead-in flag: The question asks for the FALSE statement, meaning three options are true and one is false.
Question ID
Q1xVDIpmpqYHF47b908n2K
Practise the full INI-CET EXAM -2025
Attempt every question from this paper in a timed mock, then review the full solution for each one.
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