The nurse is caring for a client diagnosed with coronary artery disease. When examining the results of laboratory tests, the nurse notes that which findings are consistent with this diagnosis?
1. Decreased total serum cholesterol and LDL, and elevated HDL
2. Elevated total serum cholesterol, LDL, and HDL
3. Elevated total serum cholesterol and LDL, and decreased HDL
4. Decreased total serum cholesterol, LDL, and HDL
Correct Answer: 3
Rationale 1: Decreased total serum cholesterol and LDL are inconsistent with coronary artery disease because LDL reflects the amount of cholesterol that is being transported from the liver to peripheral tissue. An elevation in HDL is inconsistent with coronary artery disease because this value reflects how much cholesterol is being carried from the peripheral tissue to the liver for metabolism and excretion.
Rationale 2: Elevated total serum cholesterol and LDL are consistent with coronary artery disease because LDL reflects the amount of cholesterol that is being transported from the liver to peripheral tissue. An elevation in HDL is inconsistent with coronary artery disease because this value reflects how much cholesterol is being carried from the peripheral tissue to the liver for metabolism and excretion.
Rationale 3: Elevated total serum cholesterol is consistent with coronary artery disease. Increased LDL is consistent with coronary artery disease because LDL reflects the amount of cholesterol that is being transported from the liver to peripheral tissue. A decrease in HDL is inconsistent with coronary artery disease because this value reflects how much cholesterol is being carried from the peripheral tissue to the liver for metabolism and excretion.
Rationale 4: Decreased total serum cholesterol is inconsistent with coronary artery disease, and decreased LDL is inconsistent with coronary artery disease because low-density lipoprotein level reflects the amount of cholesterol that is being transported from the liver to peripheral tissue. A decrease in high-density lipoprotein is consistent with coronary artery disease because this value reflects how much cholesterol is being carried from the peripheral tissue to the liver for metabolism and excretion.
Global Rationale: Elevated total serum cholesterol is consistent with coronary artery disease. Increased LDL is consistent with coronary artery disease because LDL reflects the amount of cholesterol that is being transported from the liver to peripheral tissue. A decrease in HDL is inconsistent with coronary artery disease because this value reflects how much cholesterol is being carried from the peripheral tissue to the liver for metabolism and excretion.
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