Pharmacology and the Nursing Process 9th Edition Test Bank

Correct Answer: C

Rationale: The correct answer is C: Hypomagnesemia. 1. Hypertension and cardiac dysrhythmias can be exacerbated by low magnesium levels. 2. Magnesium plays a crucial role in maintaining normal heart rhythm and blood pressure. 3. Hypomagnesemia can lead to cardiac arrhythmias and worsen hypertension. 4. Metabolic acidosis (A) is not directly related to hypertension and dysrhythmias. 5. Hypernatremia (B) and hypercalcemia (D) are less likely to be associated with cardiac issues in this context. In summary, checking for hypomagnesemia is essential due to its direct impact on the client's hypertension and cardiac dysrhythmias.

Correct Answer: A

Rationale: The correct answer is A: Use parallel bars or a walker. Before a client with impaired physical mobility gets up, the nurse should provide assistive devices like parallel bars or a walker to ensure safe and supported ambulation. This helps prevent falls and promotes independence. Using incontinence pads (B) is not directly related to mobility. Applying an abdominal binder (C) is not necessary before the client gets up. Using a footboard (D) is more relevant for positioning in bed, not for assisting with ambulation.

Correct Answer: D

Rationale: The correct answer is D: Tensilon test. The Tensilon test involves administering edrophonium (Tensilon) to temporarily improve muscle weakness in myasthenia gravis patients, confirming the diagnosis. Other choices are incorrect: A (Mestinon test) is not a standard diagnostic test for myasthenia gravis, B (Pulmonary function studies) are not specific for myasthenia gravis, and C (Quinine tolerance test) is not a relevant test for this condition.

Correct Answer: A

Rationale: The correct answer is A: Malignant. A malignant tumor spreading to surrounding tissues indicates invasive growth, characteristic of malignancy. It is aggressive and can invade nearby structures. Non-malignant tumors are localized and do not invade surrounding tissues. Benign tumors are non-invasive and do not spread to other parts of the body. Choice D is incorrect because a tumor spreading to surrounding tissues is indicative of malignancy, not benignity.

Correct Answer: A

Rationale: The correct answer is A: A rapid, thready pulse. After paracentesis, rapid removal of ascitic fluid can lead to a decrease in intravascular volume, causing hypovolemia and subsequent compensatory mechanisms like tachycardia (rapid pulse). This is a crucial sign that the nurse should monitor for early detection of hypovolemia. B: Decreased peristalsis is not directly related to paracentesis and is not an immediate concern post-procedure. C: Respiratory congestion is not a common complication of paracentesis and is not the most immediate concern. D: An increased temperature is not a typical response to paracentesis and is not a priority observation post-procedure.