After an older client receives treatment for drug toxicity, the healthcare provider prescribes a 24-hour creatinine clearance test. Prior to starting the urine collection, the nurse notes that the client's serum creatinine is 0.3 mg/dL (22.9 μmol/L). Which action should the nurse implement?
Creatinine [Reference Range: 0.5 to 1.1 mg/dL (44 to 97 μmol/L)]

Given the client's symptoms of constant chest pressure that is unrelieved with rest, along with the client's appearance of anxiety, pallor, and diaphoresis, it indicates a high likelihood of an acute coronary event, such as a myocardial infarction (heart attack). In this situation, the nurse should prioritize immediate actions that address the potential cardiac emergency.

Aspirin is an essential medication in the initial management of acute coronary syndrome, including unstable angina and myocardial infarction. It helps to inhibit platelet aggregation and reduce the risk of clot formation in the coronary arteries. The chewable form of aspirin is recommended because it allows for more rapid absorption.

While evaluating extremities for perfusion, pulse volume, and pitting edema is important in assessing the client's overall cardiovascular status, it is not the immediate next step when faced with a suspected acute coronary event.

Securing client consent for coronary angiography and percutaneous coronary intervention (PCI) is a relevant step in the management of unstable angina and myocardial infarction, but it is not the immediate action to be taken in the emergency department. The client requires stabilization and initial medical interventions before procedural consent can be obtained.

Placing an indwelling urinary catheter and instituting strict intake and output measurements is not a priority action in this situation. The focus should be on addressing the potential acute coronary event and ensuring the client's cardiac stability. Urinary catheterization and monitoring of intake and output can be considered later, if necessary.

Imbalanced Nutrition: less than body requirements would be the nursing problem with the highest priority for an adolescent with anorexia nervosa. Anorexia nervosa is characterized by a severe restriction of food intake leading to a significantly low body weight, which can have serious physical and psychological consequences. Therefore, addressing the client's malnutrition and promoting adequate nutrition intake is crucial to prevent further complications. Disturbed Body Image, Interrupted Family Processes, and Noncompliance with treatment regimen are important nursing problems to address, but they are secondary to the client's malnutrition.