Which of the following hormones is secreted by the thyroid gland?
Renin
Brain natriuretic peptide (BNP)
Erythropoietin
Calcitonin
The Correct Answer is D
Choice A reason: Renin, from the kidneys, regulates blood pressure via angiotensin, not a thyroid product, unrelated to its metabolic or calcium functions.
Choice B reason: BNP, secreted by the heart, reduces volume overload in heart failure, not a thyroid hormone, distinct from its endocrine role.
Choice C reason: Erythropoietin, from kidneys, stimulates red blood cell production, not produced by the thyroid, which focuses on metabolism and calcium.
Choice D reason: Calcitonin, from thyroid parafollicular cells, lowers blood calcium by inhibiting bone resorption, a key thyroid hormone alongside T3/T4.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Increasing oxygen to 3 L/min may help but risks CO2 retention in COPD without assessing respiratory rate, depth, and saturation first, making it premature.
Choice B reason: Coughing clears secretions, but without assessing respiratory status, it’s unclear if secretions are the issue or if the client can effectively cough, so it’s not priority.
Choice C reason: Calling emergency services assumes severity without data like oxygen saturation or distress level, delaying care by skipping initial assessment in this stable setting.
Choice D reason: Assessing respiratory status (rate, oxygen saturation, lung sounds) identifies the cause of difficulty, guiding interventions like oxygen adjustment or escalation, per ABC priority.
Correct Answer is A
Explanation
Choice A reason: ESRD impairs fluid excretion, causing hypervolemia, leading to edema, crackles from pulmonary fluid, and hypertension from increased vascular volume, matching these symptoms.
Choice B reason: Hypovolemia, low fluid volume, causes hypotension and dry tissues, not swelling, crackles, or high blood pressure, which indicate excess fluid, not deficit.
Choice C reason: Hyperkalemia elevates potassium, causing arrhythmias or muscle issues, not directly linked to crackles, edema, or hypertension, which are fluid-related in ESRD.
Choice D reason: Hyponatremia, low sodium, may cause neurological symptoms, but crackles, edema, and hypertension point to fluid overload, not sodium imbalance primarily.
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