Question 42

Glucose and triglycerides are appropriate for a fasting specimen.

Fasting specimens are required for certain blood tests to ensure accuracy, particularly for glucose and triglycerides. These tests are sensitive to dietary intake and can yield misleading results if not performed after a period of fasting.

A) Glucose and triglycerides

This option is correct because both glucose and triglycerides are typically measured after fasting. A fasting period allows for a more accurate assessment of blood sugar levels and lipid profiles, as food intake can significantly affect these values.

B) BUN and alkaline phosphatase

This option is incorrect as BUN (Blood Urea Nitrogen) and alkaline phosphatase do not require fasting for accurate measurement. BUN can be influenced by dietary protein intake, but it is not strictly necessary to fast before this test, and alkaline phosphatase levels are generally stable regardless of food consumption.

C) Creatinine and total protein

This option is also incorrect, as neither creatinine nor total protein requires fasting. Creatinine levels are primarily used to assess kidney function and are not significantly affected by recent food intake. Similarly, total protein levels are stable and do not necessitate fasting.

D) Lactate dehydrogenase and albumin

This option is incorrect as well. Lactate dehydrogenase (LDH) and albumin can be measured without fasting. LDH levels are not influenced by food intake, and albumin levels remain constant regardless of whether the patient has fasted or not.

Conclusion

In summary, option A is the only correct choice as both glucose and triglycerides require fasting for accurate testing. The other options do not necessitate fasting and can yield reliable results regardless of food intake, highlighting their inapplicability in this context.