A nurse is providing care for a 71-year-old client who has diabetes insipidus (DI) and is receiving treatment with desmopressin. Which of the following lab values is most important for the nurse to monitor?

Choice A reason:

Heart murmur is a common manifestation of valvular dysfunction. It occurs when there is turbulent blood flow across a damaged or abnormal heart valve. This can be due to stenosis (narrowing of the valve) or regurgitation (leakage of the valve). The murmur’s characteristics, such as timing, location, and intensity, can help in diagnosing the specific type of valvular disease. For example, a systolic murmur might indicate aortic stenosis or mitral regurgitation, while a diastolic murmur could suggest aortic regurgitation or mitral stenosis.

Choice B reason:

Chest pain is another symptom that can be associated with valvular dysfunction. This pain can result from increased workload on the heart due to inefficient blood flow through the valves. Conditions like aortic stenosis can lead to angina (chest pain) because the heart muscle may not receive enough oxygenated blood. This symptom is particularly concerning and warrants immediate medical attention to prevent complications such as myocardial infarction.

Choice C reason:

Varicose veins are not typically associated with valvular dysfunction in the heart. They are more related to issues with the veins in the legs, where the valves that prevent backflow of blood become weakened or damaged. This condition is generally referred to as chronic venous insufficiency and is not directly linked to the heart’s valvular problems.

Choice D reason:

Palpitations, or the sensation of irregular or rapid heartbeats, are common in clients with valvular dysfunction. These can occur due to arrhythmias, which are often seen in conditions like mitral valve prolapse or aortic regurgitation. The irregular heartbeats can be a result of the heart trying to compensate for the inefficient blood flow caused by the faulty valve.

Choice E reason:

Abdominal pain is not a typical manifestation of valvular dysfunction. While severe heart conditions can sometimes lead to generalized symptoms, abdominal pain is more commonly associated with gastrointestinal issues rather than heart valve problems. Therefore, it is not a primary symptom to anticipate in clients with valvular dysfunction.

The correct answer is a. Insulin is stable at room temperature for one month.

Choice A Reason:

Insulin is stable at room temperature (between 59°F and 86°F) for up to one month. This is important for patients to know, especially if they do not have immediate access to refrigeration. However, it is crucial to avoid exposing insulin to extreme temperatures, such as direct sunlight or freezing conditions, as these can degrade the medication’s effectiveness.

Choice B Reason:

While some types of insulin can be mixed in the same syringe, this practice is not universally applicable to all insulin types. For example, rapid-acting and intermediate-acting insulins can sometimes be mixed, but long-acting insulins should not be mixed with other insulins. Therefore, this statement is not entirely accurate and should be clarified based on the specific types of insulin being used.

Choice C Reason:

Storing insulin in the freezer is not recommended as freezing can damage the insulin, rendering it ineffective. Insulin should be stored in a refrigerator at temperatures between 36°F and 46°F. If insulin is accidentally frozen, it should not be used.

Choice D Reason:

While it is advisable for clients with type 1 diabetes to have backup medication and supplies, storing them in a car is not recommended due to the potential for extreme temperature fluctuations. Insulin and other diabetes supplies should be kept in a stable, controlled environment to ensure their efficacy.