ATI PN Adult Medical Surgical 2019

Correct Answer: B

Rationale: An LDL level of 200 mg/dL is significantly elevated and requires immediate intervention to reduce the risk of cardiovascular events in a client with coronary artery disease (CAD). High LDL levels contribute to the development and progression of atherosclerosis, which can lead to complications like heart attacks and strokes. Lowering LDL levels is a key goal in managing CAD and preventing further cardiovascular damage. Total cholesterol of 180 mg/dL, triglycerides of 150 mg/dL, and HDL of 40 mg/dL are within acceptable ranges and do not pose an immediate risk that necessitates urgent intervention.

Correct Answer: C

Rationale: A urine output of 20 ml/hour indicates severe dehydration and impaired renal function. This finding suggests a critical state where the kidneys are conserving water, leading to reduced urine output. Immediate intervention is required to restore fluid balance and prevent further complications associated with severe dehydration. Choice A, a heart rate of 110 beats per minute, may indicate dehydration but is not as severe as the critically low urine output. Choice B, a blood pressure of 90/60 mm Hg, can be seen in dehydration but is not as concerning as the extremely low urine output. Choice D, dry mucous membranes, is a common sign of dehydration but does not require immediate intervention compared to the severely reduced urine output.

Correct Answer: A

Rationale: Administering calcium gluconate is the appropriate intervention for a client with hyperkalemia. Calcium gluconate helps stabilize the heart by counteracting the effects of high potassium levels and reducing the risk of cardiac complications in individuals with hyperkalemia. Choices B, C, and D are incorrect. Encouraging a diet high in potassium or providing potassium supplements would exacerbate hyperkalemia. Restricting sodium intake is not directly related to addressing hyperkalemia.

Correct Answer: C

Rationale: Epoetin alfa is a medication that stimulates red blood cell production. Therefore, in a client with chronic renal failure, an effective outcome of epoetin alfa therapy would be an improvement in hemoglobin levels. This indicates that the medication is working as intended by addressing anemia, a common complication of chronic renal failure. Increased urine output (choice A) is not directly related to the action of epoetin alfa. Decreased blood pressure (choice B) is not a primary expected outcome of epoetin alfa therapy. Stable potassium levels (choice D) are important but not a direct indicator of the effectiveness of epoetin alfa in this context.

Correct Answer: C

Rationale: Activated partial thromboplastin time (aPTT) is the appropriate laboratory test to monitor the effectiveness of heparin therapy. Heparin works by prolonging the clotting time, which is reflected in the aPTT results. Monitoring aPTT helps ensure the patient is within the therapeutic range and not at risk of bleeding or clotting complications. Prothrombin time (PT) (Choice A) primarily measures the extrinsic pathway of coagulation and is used to monitor warfarin therapy, not heparin. Platelet count (Choice B) assesses the number of platelets present in the blood and is not specific to monitoring heparin therapy. International normalized ratio (INR) (Choice D) is used to monitor warfarin therapy, not heparin.