HESI Leadership and Management Test Bank

Correct Answer: A

Rationale: The correct answer is A: Alcoholism. Alcoholism can lead to hypophosphatemia due to poor dietary intake and other factors. Excessive alcohol consumption can result in malnutrition, particularly a deficiency in phosphorus. Choices B, C, and D are unlikely to cause low serum phosphorus levels. Renal insufficiency is more likely to cause hyperphosphatemia, hypoparathyroidism is associated with hypocalcemia rather than hypophosphatemia, and tumor lysis syndrome typically presents with hyperphosphatemia due to the release of intracellular phosphate.

Correct Answer: D

Rationale: Diabetes insipidus is caused by a disorder of the pituitary gland affecting ADH regulation. This disorder results in the decreased production or release of antidiuretic hormone (ADH), leading to the inability of the kidneys to concentrate urine properly. Choices A, B, and C are incorrect as they do not relate to the underlying cause of diabetes insipidus.

Correct Answer: B

Rationale: A persistent vegetative state is characterized by the absence of cognitive functioning while basic human functions like the sleep-wake cycle are retained. In this state, the patient shows reflex movements and basic responses to stimuli but lacks awareness or higher mental functions. Choices A, C, and D are incorrect because: A) Obtunded refers to a decreased level of consciousness, not the absence of cognitive functioning. C) Locked-in syndrome is a condition where the patient is aware and awake but cannot move or communicate due to complete paralysis of nearly all voluntary muscles except for vertical eye movements and blinking. D) Brain death is the irreversible cessation of all brain activity, including the brainstem, leading to the loss of all functions of the brain.

Correct Answer: D

Rationale: The correct answer is D. An avulsion fracture occurs when a part of the bone is pulled away by a tendon or ligament. Choice A is incorrect because it describes an open fracture where the bone penetrates the skin. Choice B is incorrect as a pathological fracture results from an underlying disease weakening the bone, not physical trauma. Choice C is incorrect as a greenstick fracture involves the bone bending but not completely breaking.

Correct Answer: D

Rationale: The correct answer is processed oat cereals. Processed oat cereals are often high in sodium content, which should be avoided in cases of hypernatremia. Peas, cauliflower, and low-fat yogurt are generally low in sodium and are not typically contraindicated in hypernatremia. Therefore, choices A, B, and C are incorrect.