Community Health HESI Practice Exam Related

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A client is scheduled to have a blood test for cholesterol and triglycerides the next day. The nurse would tell the client

  • A. ''Be sure to eat a fat-free diet until the test.''
  • B. ''Do not eat or drink anything but water for 12 hours before the blood test.''
  • C. ''Have the blood drawn within 2 hours of eating breakfast.''
  • D. ''Stay at the laboratory so 2 blood samples can be drawn an hour apart.''
Correct Answer: B

Rationale: Fasting for at least 12 hours is necessary before a cholesterol and triglyceride test to ensure accurate results by avoiding fluctuations that can occur after eating. Choice A is incorrect because a fat-free diet is not required; fasting is. Choice C is incorrect as it suggests having the test right after eating, which can affect the results. Choice D is incorrect as there is no need to stay at the laboratory for 2 blood samples unless specifically instructed by a healthcare provider.