A nurse is caring for a client with a urine specific gravity of less than 1.005, polyuria, and nocturia. The nurse recognizes that which of the following physiologic findings is the likely cause?
Increased insulin production
Increased adrenocorticotropic hormone (ACTH)
Low levels of T3, T4
Insufficient antidiuretic hormone (ADH)
The Correct Answer is D
A. Increased insulin production would not cause polyuria and low specific gravity urine; rather, hyperglycemia from lack of insulin can cause high specific gravity due to glucose in urine.
B. Increased ACTH affects cortisol production but is not directly related to urine concentration or polyuria.
C. Low T3 and T4 levels are associated with hypothyroidism, which typically does not cause polyuria or decreased specific gravity.
D. Insufficient ADH, as seen in diabetes insipidus, leads to the inability to concentrate urine, resulting in a low specific gravity, polyuria, and nocturia due to excessive water loss.
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Correct Answer is D
Explanation
A. Encouraging deep breathing exercises may help with respiratory function but does not address the immediate risks associated with increased ICP.
B. Elevating the head of the bed can help reduce ICP; however, the priority intervention is to closely monitor ICP to identify any changes in the client's condition.
C. Administering a sedative may be appropriate, but it is not as critical as monitoring ICP in a client with Cushing's Triad, where altered consciousness and respiratory changes may be present.
D. Monitoring ICP is crucial in this situation, as Cushing's Triad indicates a potential increase in ICP, and timely interventions can prevent further complications.
Correct Answer is ["A","C","D"]
Explanation
A. Elevating the head of the bed to 30-45 degrees helps facilitate venous drainage from the brain, thereby reducing ICP.
B. Administering intravenous fluids rapidly is not appropriate, as it can lead to fluid overload and increase ICP.
C. Keeping the client in a calm and quiet environment minimizes stimulation, which can contribute to increased ICP.
D. Administering morphine sulfate as prescribed can provide pain relief, which may help decrease ICP since pain can contribute to increased intracranial pressure.
E. The Valsalva maneuver increases intrathoracic pressure and can lead to increased ICP, making it contraindicated in this scenario.