Which of the following is a nurse patient care role in the preoperative phase?

Correct Answer: A

Rationale: In the preoperative phase, one of the key roles of a nurse in patient care is to obtain preoperative orders. This involves ensuring that all necessary tests, medications, and procedures are in place before the surgery is performed. By obtaining preoperative orders, the nurse ensures that the patient is adequately prepared for the surgical procedure and that any potential risks or complications are minimized. This role requires attention to detail, clear communication with the healthcare team, and a thorough understanding of the patient's individual needs and medical history.

Correct Answer: D

Rationale: An inotropic agent, such as digoxin, is a medication that strengthens the contraction of the heart muscle. It works by increasing the force of each heartbeat, helping the heart pump more efficiently. This can be beneficial in conditions such as heart failure or certain types of arrhythmias where the heart's pumping ability is compromised. Inotropic agents do not decrease heart rate, increase conduction time, or increase heart rate; their primary action is to enhance the heart's contractility.

Correct Answer: C

Rationale: Metolazone, a diuretic medication commonly known as Zaroxolyn, can cause electrolyte imbalances in the body, particularly low potassium levels which can lead to muscle weakness. Therefore, the nurse should instruct the patient to report any signs or symptoms of muscle weakness to the healthcare provider promptly. Numb hands, gastrointestinal distress, and nightmares are not common side effects of metolazone that typically require urgent medical attention.

Correct Answer: B

Rationale: For an agitated head-injured patient, the most therapeutic setting would be a semiprivate room with one or two consistent caregivers. Consistency and familiarity can help reduce agitation and promote a sense of security for the patient. A quieter environment with fewer stimuli can also help in managing agitation and promoting a sense of calmness. By having consistent caregivers, the patient can build trust and feel more comfortable, which can contribute to their overall well-being and recovery. It is essential to minimize external factors that could contribute to further agitation, making a semiprivate room with consistent caregivers the most optimal setting for an agitated head-injured patient.

Correct Answer: C

Rationale: High fluid intake is the dietary intervention that prevents the precipitation of calcium renal stones. By increasing fluid intake, particularly water, the urine gets diluted, thus reducing the concentration of substances that can lead to the formation of kidney stones, including calcium. Drinking enough water can also help to flush out any potential stone-forming minerals or substances before they have a chance to crystallize and form stones in the kidney. It is recommended to have an adequate fluid intake of around 2 to 3 liters per day to reduce the risk of calcium stone formation in the kidneys. High fiber diet, increased protein intake, and intake of zinc do not directly prevent the precipitation of calcium renal stones as effectively as maintaining high fluid intake.