A client with a seizure disorder is seen at the clinic for a follow-up visit and a prescription renewal for phenytoin. Which assessment finding warrants immediate intervention by the nurse?

Choice A reason: Muscle tenderness is a sign of myopathy, a rare but serious adverse effect of atorvastatin and other statins. Myopathy is characterized by muscle weakness, pain, and elevated CK levels. CK is an enzyme that is released when muscle tissue is damaged. The nurse should monitor the client for muscle tenderness and report any changes to the prescriber.

Choice B reason: Nausea and vomiting are common side effects of atorvastatin, but they are not related to CK levels. The nurse should advise the client to take the medication with food and fluids to minimize gastrointestinal discomfort.

Choice C reason: Excessive bruising is not a typical side effect of atorvastatin, nor is it associated with CK levels. The nurse should assess the client for other possible causes of bleeding, such as coagulation disorders, trauma, or drug interactions.

Choice D reason: Peripheral edema is not a common side effect of atorvastatin, and it is not related to CK levels. The nurse should assess the client for other signs of fluid retention, such as weight gain, shortness of breath, or jugular venous distension. The nurse should also check the client's blood pressure and heart rate, as peripheral edema may indicate heart failure or hypertension.

Choice A reason: Performing a bladder scan is not the most relevant intervention for monitoring an adverse reaction to tamsulosin. A bladder scan is a non-invasive test that measures the amount of urine in the bladder. It can be used to assess urinary retention, which is a common symptom of benign prostatic hyperplasia. Tamsulosin is a medication that relaxes the smooth muscle of the prostate and bladder neck, which can improve urine flow and reduce urinary retention. However, a bladder scan does not indicate how the medication is affecting the client's blood pressure, which is a more serious concern.

Choice B reason: Assessing urine output is not the most relevant intervention for monitoring an adverse reaction to tamsulosin. Urine output is the amount of urine produced by the kidneys and excreted by the bladder. It can be used to evaluate the client's fluid balance and kidney function. Tamsulosin is a medication that can improve urine flow and reduce urinary retention in clients with benign prostatic hyperplasia. However, urine output does not indicate how the medication is affecting the client's blood pressure, which is a more serious concern.

Choice C reason: Measuring blood pressure is the most relevant intervention for monitoring an adverse reaction to tamsulosin. Blood pressure is the force of blood against the walls of the arteries. It can be affected by various factors, such as heart rate, blood volume, and vascular resistance. Tamsulosin is a medication that belongs to the class of alpha-blockers, which can lower blood pressure by dilating the blood vessels. This can cause side effects such as dizziness, fainting, and orthostatic hypotension, which is a sudden drop in blood pressure when changing positions. The nurse should measure the client's blood pressure regularly and report any abnormal findings to the healthcare provider.

Choice D reason: Monitoring daily weights is not the most relevant intervention for monitoring an adverse reaction to tamsulosin. Daily weights are a measure of the client's body mass, which can reflect changes in fluid status and nutritional intake. Tamsulosin is a medication that can improve urine flow and reduce urinary retention in clients with benign prostatic hyperplasia. However, daily weights do not indicate how the medication is affecting the client's blood pressure, which is a more serious concern.