Question 80

HDL testing requires fasting prior to the test.

Fasting is necessary for accurate HDL (High-Density Lipoprotein) cholesterol measurement because food intake can influence lipid levels, thus potentially skewing results. To obtain the most reliable data regarding cholesterol levels, patients are advised to fast before the test.

A) BUN

Blood Urea Nitrogen (BUN) testing does not require fasting as it measures kidney function and is not significantly affected by recent food intake. Therefore, patients can eat normally before this test.

B) HDL

HDL testing requires fasting to ensure the accuracy of cholesterol levels. Since dietary intake can alter lipid profiles, fasting before the test enables healthcare providers to obtain a clearer picture of an individual's cholesterol status.

C) ABG

Arterial Blood Gas (ABG) tests do not have a fasting requirement. This test assesses the levels of oxygen and carbon dioxide in the blood as well as the acidity (pH), which are not influenced by food consumption.

D) CBC

A Complete Blood Count (CBC) does not necessitate fasting either. This test evaluates various components of blood, such as red and white blood cells, and is not affected by recent meals.

Conclusion

In summary, HDL testing is unique among the options provided in that it requires fasting to ensure accurate results. In contrast, BUN, ABG, and CBC tests do not have this requirement, making them suitable for administration without prior fasting. Thus, option B is definitively the correct answer.