Final answer:
Lactate level measurement requires a blood draw without stasis to prevent false elevation of lactate levels, which is essential in diagnosing conditions like lactic acidosis.
Step-by-step explanation:
The test that should be drawn without stasis is d. Lactate. When measuring lactate levels, it's important to collect the blood sample without stasis to prevent the conversion of pyruvate to lactate which can falsely elevate the lactate levels. This is particularly important when investigating conditions like lactic acidosis, where lactate measurement is crucial. Tests like glucose tolerance test (GTT), measurement of potassium, and troponin levels do not require a non-stasis blood draw.