Before aliquoting a sample from a primary tube, what is a crucial step to ensure homogeneity, especially for samples like plasma or serum?

What is the correct order of draw for a venipuncture when collecting blood into a light blue top tube (coagulation), a red top tube (serum), and a lavender top tube (EDTA)?

A positive fecal occult blood test (FOBT) indicates:

A common reason for the rejection of a coagulation (light blue top) specimen is

Proper patient identification before venipuncture involves asking the patient for their:

For a pediatric venipuncture, which gauge needle is generally preferred to minimize trauma

Where are the kidneys located in the human body

Which ethical principle emphasizes the duty to “do no harm”

What is a “lumen” in the context of needles

When collecting a 24-hour urine specimen, what is the most important instruction to give the patient?