Catecholamine-producing gland is:

Appeared in: DSSSB 12 August 2024

Explanation

The adrenal gland is the correct answer because its inner part, the adrenal medulla, is the primary site for the synthesis and secretion of catecholamines.
Catecholamines include epinephrine (adrenaline) and norepinephrine (noradrenaline).
These hormones are central to the sympathetic nervous system's 'fight-or-flight' response, preparing the body to react to stress.

Option B: The pancreas is primarily involved in regulating blood sugar levels through the secretion of insulin and glucagon; it does not produce catecholamines.
Option C: The thyroid gland produces thyroid hormones (T3 and T4) which regulate metabolism, and calcitonin, which helps regulate calcium levels. It is not involved in catecholamine production.
Option D: The pituitary gland is often called the 'master gland' because it secretes trophic hormones that control other endocrine glands. It does not directly produce catecholamines.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Hormone production by endocrine glands as background academic context rather than a clinical decision trigger.
A tumor of the adrenal medulla, known as a pheochromocytoma, can cause the overproduction of catecholamines. This leads to severe symptoms like episodic high blood pressure, headaches, palpitations, and excessive sweating.
Nurses must be aware of these symptoms as they can indicate a life-threatening hypertensive crisis requiring immediate intervention.
What if? If a patient presents with unexplained episodes of extreme hypertension and palpitations, a nurse should consider the possibility of a pheochromocytoma and advocate for diagnostic tests, such as a 24-hour urine test for catecholamine metabolites (VMA, metanephrines).

How to Approach the Question

First, identify the key term in the question: 'Catecholamine'.
Recall the definition and function of catecholamines (epinephrine/norepinephrine) and their role in the 'fight-or-flight' response.
Systematically review the function of each gland listed in the options.
Match the production of catecholamines to the correct gland. The adrenal medulla, part of the adrenal gland, is the primary source.
Eliminate the other options based on their primary hormonal functions (Pancreas: insulin/glucagon; Thyroid: T3/T4; Pituitary: trophic hormones).

Concept Tested & Keywords

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E6 Nursing Brunner Adult Health 3SA Vol 1 Part 4 p. 32-34

E6 Kaplan Sadock's Synopsis of Psychiatry-2022 (pp 1-3768 of 3768) p. 3001-3003

E6 Anatomy BDChaurasia V2 10e Part 2 p. 115-117

Practise the full DSSSB 12 August 2024

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