A nurse is reporting a client's laboratory tests to the provider to obtain a prescription for the client's daily warfarin.
Which of the following laboratory tests should the nurse plan to report to obtain the prescription for the warfarin?

Choice A rationale:

Improved short-term memory. Donepezil is a medication used to treat Alzheimer's disease and other forms of dementia. It works by increasing the levels of certain chemicals in the brain that are involved in memory, thinking, and reasoning. Therefore, improved short-term memory is an indication that the medication is effective, as it suggests enhanced cognitive function in the client.

Choice B rationale:

Enhanced mood. While improved mood can be a positive outcome of treating dementia, it is not the primary goal of donepezil therapy. The main focus is on cognitive improvement, particularly in memory and thinking skills. Enhanced mood alone may not be a reliable indicator of the medication's effectiveness in this context.

Choice C rationale:

Can perform ADLs independently. The ability to perform activities of daily living (ADLs) independently is an important aspect of a patient's overall well-being. However, this improvement may not solely be attributed to the effects of donepezil. Other factors, such as rehabilitation or support services, can also contribute to the patient's ability to perform ADLs. While it is a positive outcome, it is not a specific indication of donepezil's effectiveness.

Choice D rationale:

Increased food intake. Increased food intake is not a direct effect of donepezil. Donepezil does not have a primary role in regulating appetite or food intake. Therefore, this finding is not a reliable indicator of the medication's effectiveness in treating dementia.

The correct answer is Choice a.

Choice a rationale: The nurse should obtain the specimen immediately upon the client waking up, as sputum from deep in the lungs is usually more easily collected at this time. Sputum collected upon waking up is more likely to contain secretions from the lower respiratory tract, providing a better sample for tuberculosis diagnosis. This timing maximizes the chance of detecting the bacteria.

Choice b rationale: Choice b is incorrect because the typical volume of sputum needed for testing is about 1 teaspoon (5 mL), not 15 to 20 mL. Collecting such a large volume could be challenging for the client and unnecessary for diagnostic purposes.

Choice c rationale: Choice c is incorrect because while gloves should be worn, they do not need to be sterile, just clean. The use of clean gloves is sufficient to prevent contamination during specimen collection, and sterile gloves are not required for this procedure.

Choice d rationale: Choice d is incorrect because it’s important to try to collect the specimen as soon as possible, not wait a full day. Delaying collection for a day could result in a missed opportunity to diagnose tuberculosis and initiate appropriate treatment promptly. Collecting the specimen promptly maximizes the accuracy of diagnostic testing and facilitates timely intervention for the client's health.