A client who has to undergo a parathyroidectomy is worried about possibly having to wear a scarf around the neck after surgery. What nursing diagnosis should the nurse document in the care plan?

A. Optic function: While potassium plays a role in cellular processes, including those in the eyes, its primary effects are felt in areas like the cardiovascular system. The optic nerve and visual processing are not influenced by potassium levels.

B. Cardiac function: Potassium is crucial for maintaining normal cardiac function. It helps regulate the electrical activity of the heart, and its imbalance can lead to arrhythmias, which can be life-threatening. Hypokalemia can cause disturbances in the heart’s rhythm, making it the most critical aspect to address.

C. Auditory function: Potassium levels do not affect auditory function. Potassium is involved in bodily functions, including maintaining the electrochemical gradients necessary for nerve and muscle activity, but it does not have a role in hearing or auditory processes.

D. Skeletal function: Potassium is important for muscle function, including skeletal muscles. Potassium’s role in muscle contraction extends to both skeletal and smooth muscles, but its impact on the heart’s electrical system makes cardiac function the priority.

A. Obtain a new sterile dressing kit: If the patient touches sterile supplies, contamination has occurred, compromising the sterile field. To prevent infection, the nurse must discard the contaminated kit and use a new sterile dressing kit.

B. Wash the patient's hands: Washing hands improves hygiene but doesn’t re-sterilize already contaminated items. The dressing kit is no longer sterile, so washing hands alone is insufficient. Sterility must be restored with new supplies.

C. Continue changing the dressing: Proceeding with the contaminated supplies risks introducing pathogens into the wound, increasing infection risk. The sterile field must be maintained at all times.

D. Restrain the patient's hands: Restraining without assessing or explaining is not appropriate; it can cause distress and is not a first-line response to contamination during a sterile procedure.