The nurse is reviewing the prescriptions for a client with severe pain from renal colic.
Which of the following prescriptions should the nurse implement first?

Choice A rationale

Asking about medication use for headaches provides insights into pain management strategies but does not directly address underlying causes of symptoms. Vision changes and headaches may indicate neurological or cardiovascular issues, which require immediate investigation of vital signs like blood pressure to rule out hypertension or increased intracranial pressure.

Choice B rationale

Referring the client to an eye specialist addresses vision changes but neglects the acute nature of headaches. Hypertension or elevated intracranial pressure can affect both vision and cause headaches, and immediate assessment of these factors through blood pressure is more urgent.

Choice C rationale

Obtaining blood pressure evaluates for hypertension, which can manifest with headaches and visual disturbances due to increased arterial pressure affecting cerebral and ocular vessels. Normal blood pressure ranges are typically 120/80 mmHg. Immediate blood pressure measurement prioritizes acute care and mitigates potentially life-threatening conditions.

Choice D rationale

Obtaining a full history and physical is valuable for comprehensive care but delays immediate assessment of critical symptoms such as visual changes and headaches. Measuring blood pressure provides faster evaluation of acute conditions like hypertensive crisis or stroke risk.

Choice A rationale

Referring the client to see an optometrist is inappropriate because visual disturbances can be a sign of digoxin toxicity, which requires immediate medical attention rather than routine visual examination. Toxicity manifests due to elevated serum digoxin levels, with symptoms including blurred vision and yellow-green halos. Normal digoxin range is 0.5-2.0 ng/mL.

Choice B rationale

Asking if the client wears glasses or contact lenses does not address the root cause of visual disturbances, which is likely linked to digoxin toxicity. Such queries delay prompt medical intervention needed to evaluate and manage the client’s condition. Ocular aids are unrelated to pharmacological adverse effects.

Choice C rationale

Obtaining a prescription for stat laboratory tests is essential for assessing serum digoxin levels and electrolytes, particularly potassium, as hypokalemia increases sensitivity to digoxin toxicity. Prompt identification of toxicity allows timely interventions, including discontinuation of digoxin or administration of antidotes like Digibind.

Choice D rationale

Obtaining the client’s blood pressure is irrelevant in this scenario, as visual disturbances are not indicative of blood pressure abnormalities but rather digoxin toxicity. Immediate focus should be on confirming and managing toxicity through laboratory evaluation and clinical assessment.