When taking a blood pressure, it is best practice to...

Correct Answer: C

Rationale: Best practice places the BP cuff on bare skin, upper arm above the elbow , ensuring accurate artery compression. Thick clothing muffles sounds. Crossed legs may elevate readings. Forearm is less reliable. Choice C is correct, per AHA guidelines, critical for nurses to obtain precise BP measurements avoiding common errors.

Correct Answer: C

Rationale: Toddlers need appropriate sensors; checking tape allergy ensures safety. Earlobe and nose are options but secondary. Ignoring pulse variation risks inaccuracy. Choice C is correct, per pediatric safety.

Correct Answer: A

Rationale: 90/60 mmHg can be normal for some , especially if asymptomatic, and should be documented. Waiting is unnecessary without symptoms. Fluids or vasopressors need clinical context. Choice A is correct, per the explanation, reflecting nursing judgment.

Correct Answer: C

Rationale: Blood pressure is a core vital sign, alongside temperature, pulse, and respiration, reflecting cardiovascular health by measuring arterial force. Mental status is assessed separately, often via neurological exams, not as a vital sign. Visual acuity evaluates eyesight, unrelated to immediate physiological stability. Urinary output monitors kidney function but isn't a standard vital sign, though it's tracked in critical care. The answer key confirms C, aligning with nursing fundamentals (e.g., Taylor's text), where vital signs are immediate indicators of life-sustaining functions, distinguishing BP's role in routine assessments from other metrics.

Correct Answer: A

Rationale: Rectal provides the most accurate core temperature, per the answer key, reflecting internal heat near the hypothalamus. Oral , axillary , and forehead are less precise. Nurses choose rectal for its reliability in critical assessments despite invasiveness.