An increase in which serum lab value indicates to the nurse that a prescription for atorvastatin is having the desired effect for a client at risk for coronary artery disease?
Low-density lipoprotein (LDL)
Prothrombin time (PT).
Creatine phosphokinase (CK)
High-density lipoprotein (HDL).
The Correct Answer is D
A. Low-density lipoprotein (LDL): Atorvastatin's primary effect is to decrease LDL cholesterol levels. A decrease in LDL levels would indicate the medication is working as intended, not an increase.
B. Prothrombin time (PT): PT is a measure of blood clotting, which is not directly affected by atorvastatin. This value is more relevant for monitoring anticoagulant therapy.
C. Creatine phosphokinase (CK): CK levels can be used to monitor for muscle damage or side effects related to statin use. An increase in CK levels would suggest muscle damage, not the effectiveness of the statin.
D. High-density lipoprotein (HDL): Atorvastatin is a statin medication used to lower cholesterol levels, particularly low-density lipoprotein (LDL) cholesterol, which is a key target in reducing the risk of coronary artery disease (CAD). While the primary goal of atorvastatin is to lower LDL cholesterol, an increase in HDL cholesterol (often termed "good" cholesterol) is also desirable as it can help reduce the risk of CAD. Therefore, an increase in HDL is a positive indicator that the medication is having a beneficial effect.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) Hypertension: Phenytoin is primarily used to manage seizures, and hypertension is not a common side effect associated with its use. While monitoring blood pressure is important for overall health, it is not specifically indicated for detecting common side effects of phenytoin.
B) Peripheral edema: Peripheral edema is not a typical side effect of phenytoin. Common side effects are usually related to oral health and skin changes rather than fluid retention or swelling in the extremities.
C) Hematuria: Hematuria, or blood in the urine, is not commonly associated with phenytoin use. This side effect is more relevant to other medications or conditions, and while monitoring for overall health changes is important, it is not a primary concern with phenytoin.
D) Gingival hyperplasia: Phenytoin is well-known for causing gingival hyperplasia, which is the overgrowth of gum tissue. This is a common and notable side effect of long-term phenytoin use, making it important for the nurse to assess for this symptom in clients receiving the medication.
Correct Answer is A
Explanation
A. Platelet count of 100,000/mm³ (100 x 10^9/L): Enoxaparin is a low molecular weight heparin used to prevent deep vein thrombosis (DVT), and a low platelet count (thrombocytopenia) can be a serious adverse effect of anticoagulant therapy. A platelet count of 100,000/mm³ is below the normal range (150,000 to 400,000/mm³) and indicates potential thrombocytopenia, which could increase the risk of bleeding and may warrant immediate action.
B. Blood urea nitrogen (BUN) 20 mg/dL (7.1 mmol/L): This BUN level is at the upper limit of normal but does not typically require immediate action unless there are other symptoms or significant changes in kidney function.
C. Serum creatinine 1.0 mg/dL (88.4 μmol/L): This value is within the normal range for serum creatinine and does not indicate an immediate concern related to enoxaparin.
D. Hematocrit 45% (0.45 volume fraction): This hematocrit level is within the normal range and does not typically require immediate action.
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