A client with Parkinson's disease who is taking carbidopa/levodopa reports the urine appears to be darker in color. Which action should the nurse take?

Choice A reason: A yellow skin color may indicate jaundice, which is a sign of liver damage. Acetaminophen can cause liver toxicity, especially in high doses or with chronic use. The nurse should report this finding to the healthcare provider as soon as possible, as it may require further evaluation and treatment.

Choice B reason: Checking the client's capillary glucose level is not relevant to the finding of yellow skin color. Although diabetes can cause skin changes, such as dryness or infections, it does not cause jaundice. The nurse should focus on the potential liver problem rather than the blood sugar level.

Choice C reason: Using a pulse oximeter to assess oxygen saturation is not helpful in this situation. A low oxygen saturation may indicate hypoxia, which can affect various organs, but it does not cause jaundice. The nurse should monitor the client's respiratory status, but it is not the priority action in response to the yellow skin color.

Choice D reason: Advising the client to reduce the medication dose is not appropriate without consulting the healthcare provider. The client may need acetaminophen for pain relief, and reducing the dose may not be enough to prevent liver damage. The nurse should not make any changes to the medication regimen without the provider's order.

Choice A reason: Increased urinary clearance of the multiple medications is not the cause of the client's syncope. Diuresis is a common side effect of some antihypertensive medications, such as diuretics, but it does not lower the blood pressure to a dangerous level. The nurse should monitor the client's fluid and electrolyte balance and urine output, but it is not the priority action in this situation.

Choice B reason: The synergistic effect of the multiple medications is not the cause of the client's syncope. Synergism is when two or more drugs work together to produce a greater effect than the sum of their individual effects. This can be beneficial or harmful, depending on the drugs and the doses. The nurse should check the client's medication history and avoid prescribing drugs that have a negative synergistic effect, but it is not the most likely explanation for the client's hypotension.

Choice C reason: The antagonistic interaction among the various blood pressure medications is not the cause of the client's syncope. Antagonism is when two or more drugs work against each other to reduce or cancel out their effects. This can decrease the effectiveness of the treatment and increase the risk of complications. The nurse should check the client's medication history and avoid prescribing drugs that have a negative antagonistic effect, but it is not the most likely explanation for the client's hypotension.

Choice D reason: The additive effect of multiple medications is the most likely cause of the client's syncope. Additivity is when two or more drugs have a similar effect and their combined effect is equal to the sum of their individual effects. This can lower the blood pressure too much and cause symptoms such as dizziness, fainting, and shock. The nurse should hold the client's scheduled antihypertensive medications and notify the healthcare provider. The nurse should also monitor the client's vital signs, level of consciousness, and perfusion.