Pharmacology and the Nursing Process 10th Edition Test Bank

Correct Answer: C

Rationale: Elevating the head of the bed is the correct answer because it helps to promote venous drainage, reduce cerebral edema, and decrease intracranial pressure (ICP). By positioning the patient with the head elevated, gravity assists in preventing further increases in ICP. Encouraging fluids may lead to fluid overload and exacerbate cerebral edema. Providing physical therapy and frequent repositioning may increase ICP by causing unnecessary movement and potential strain on the patient's head and neck.

Correct Answer: B

Rationale: The correct answer is B because hyperkalemia presents with symptoms such as muscle weakness, diarrhea, and ECG changes. Muscle weakness is a common sign due to potassium's effect on neuromuscular function. Diarrhea can lead to potassium loss. ECG changes, such as peaked T waves and widened QRS complexes, indicate cardiac involvement. Assessing for these symptoms helps monitor the severity of hyperkalemia and guide treatment. Other choices are incorrect because assessing for fever and chest pain (choice A) are not specific to hyperkalemia. Encouraging fluid restriction (choice C) may not directly address hyperkalemia. Preparing for a cardiac ultrasound (choice D) is not an immediate intervention for hyperkalemia.

Correct Answer: C

Rationale: The correct answer is C: 3, 4, 2005. HIV can be transmitted through breast milk, blood, and semen due to the presence of the virus in these bodily fluids. Saliva, tears, and other body fluids do not typically contain enough of the virus to transmit HIV. Therefore, choices A, B, and D are incorrect as they include saliva, tears, and other non-transmissible fluids. It is crucial for the nurse to educate the patient on the modes of transmission to prevent the spread of HIV.

Correct Answer: B

Rationale: The correct answer is B: inadequate supply of oxygen to the myocardium. Angina pectoris is chest pain or discomfort caused by reduced blood flow to the heart muscle. This lack of oxygenated blood supply to the myocardium leads to ischemia, resulting in the characteristic chest pain. Choice A is incorrect as it refers to a decrease in alveolar surface area for gas exchange, which is related to conditions like emphysema, not angina. Choice C is incorrect as it pertains to pulmonary circulation, not coronary circulation. Choice D is incorrect as an increase in alveolar surface area would not be a cause of angina pectoris.

Correct Answer: B

Rationale: The correct answer is B because administration of the diuretic furosemide without saline is not recommended for managing hypercalcemia. Furosemide can lead to volume depletion and potentially exacerbate hypercalcemia by concentrating calcium levels in the blood. A: Fluid administration helps dilute calcium levels by increasing urine output. C: Inorganic phosphate salts can bind with calcium in the gut, reducing absorption. D: Intravenous phosphate therapy can help lower calcium levels by promoting calcium-phosphate complex formation. In summary, B is incorrect as it may worsen hypercalcemia, while A, C, and D are valid strategies for managing hypercalcemia.