Correct Answer: B

Rationale: The correct answer is B: Isolated systolic hypertension. This is because in isolated systolic hypertension, the systolic blood pressure is elevated while the diastolic blood pressure remains normal. This condition is common in older adults and is often related to aging and stiffening of the arteries. Primary hypertension (A) typically involves both elevated systolic and diastolic pressures. Secondary hypertension (C) is caused by an underlying condition. Hypertensive emergency (D) is characterized by severe elevations in both systolic and diastolic pressures with acute target organ damage.

Correct Answer: B

Rationale: The correct answer is B: The client wears a watch and wedding band. This is because metal objects such as watches and jewelry can be hazardous during an MRI scan due to the strong magnetic field, leading to potential movement or heating of the metal objects, causing harm to the client. A: The client lies still - This is important for obtaining clear images during an MRI scan and does not pose a threat to the client. C: The client asks questions - Asking questions during an MRI scan does not pose a direct threat to the client's safety. D: The client hears thumping sounds - Thumping sounds are a normal part of the MRI scan and do not pose a threat to the client's safety.

Correct Answer: B

Rationale: The correct answer is B. Monitoring for signs of restlessness, sweating, and excessive weight loss during thyroid replacement therapy is essential in managing hyperthyroidism. Restlessness can indicate increased metabolic rate, sweating can be due to excessive heat production, and weight loss can be a sign of overactive thyroid function. Providing extra blankets (Choice A) may worsen symptoms of heat intolerance. Balancing activity and rest (Choice C) is important, but not specific to hyperthyroidism. Encouraging activity to prevent constipation (Choice D) is not directly related to managing hyperthyroidism.

Correct Answer: B

Rationale: The correct answer is B: Turn on the affected side. This position helps to promote the closure of the puncture site in the lung, reducing the risk of fluid leakage and pneumothorax. Placing the client flat in bed (A) may not allow gravity to assist in the closure of the puncture site. Turning on the unaffected side (C) may not effectively prevent fluid leakage from the puncture site. Bed rest (D) is a general instruction and does not specifically address the prevention of fluid leakage after thoracentesis.

Correct Answer: C

Rationale: The correct answer is C: Glucagon. In a hypoglycemic reaction, glucagon can be administered to raise blood sugar levels quickly. Glucagon works by stimulating the liver to release stored glucose into the bloodstream. This is crucial in emergencies when oral carbohydrates are not feasible. Epinephrine (A) is used for severe allergic reactions, not hypoglycemia. 50% dextrose (B) is an oral carbohydrate used for hypoglycemia but is not always practical. Hydrocortisone (D) is a corticosteroid used for inflammatory conditions, not for hypoglycemic emergencies.