Fundamentals of Nursing HESI

Correct Answer: B

Rationale: Using a regular blood pressure cuff on a morbidly obese client will lead to a falsely high blood pressure reading. This occurs because the cuff is not appropriately sized for the client's arm circumference, resulting in increased pressure on the artery and an inaccurate high reading. Choice A is incorrect because the reading will be falsely high, not low. Choice C is incorrect as the reading will not be accurate with an incorrectly sized cuff. Choice D is incorrect because the reading will be affected by using the wrong cuff size.

Correct Answer: A

Rationale: The correct answer is to make sure two fingers can fit under the sleeve. This allows for proper circulation and ensures that the sleeve is not too tight, which can lead to complications such as impaired blood flow or tissue damage. Choice B is incorrect because applying the sleeve tightly can actually cause harm rather than prevent blood clots. Choice C is incorrect as snugness alone may not guarantee proper fit. Choice D is incorrect as a sleeve that is too loose can be ineffective in providing the necessary compression.

Correct Answer: B

Rationale: Using a regular blood pressure cuff on a morbidly obese client will lead to a falsely high blood pressure reading. This occurs because the cuff is not appropriately sized for the client's arm circumference, resulting in increased pressure on the artery and an inaccurate high reading. Choice A is incorrect because the reading will be falsely high, not low. Choice C is incorrect as the reading will not be accurate with an incorrectly sized cuff. Choice D is incorrect because the reading will be affected by using the wrong cuff size.

Correct Answer: D

Rationale: When a nurse observes peristomal skin irritation while changing a client's colostomy pouch, it is crucial to ensure that the pouch is slightly larger (0.32 cm or 1/8 inch) than the stoma. This extra space helps prevent the pouch from rubbing against the stoma and causing further irritation. Option A is correct because colostomy pouches should be changed based on individual needs, not necessarily every 24 hours. Option B is incorrect because applying the pouch only when the skin barrier is completely dry ensures better adhesion. Option C is incorrect as patting the peristomal skin dry after cleaning is more gentle and less likely to cause irritation compared to rubbing.

Correct Answer: C

Rationale: Cough with bloody sputum is a hallmark symptom of tuberculosis and is highly concerning as it indicates active disease. Hemoptysis (coughing up blood) is associated with tuberculosis infection in the lungs. While night sweats and weight loss are common symptoms of tuberculosis, they are less specific than coughing with bloody sputum. Fatigue is a nonspecific symptom that can be present in various conditions and is not specific to tuberculosis.