To prevent reflux (backflow) from a collection tube during venipuncture, the tube should

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

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

A positive fecal occult blood test (FOBT) indicates:

When collecting a blood specimen for a Bilirubin test on a newborn, what special handling is required?

The liquid portion of blood that remains after clotting is called

What information is generally required on a laboratory requisition form?

A “QNS” notation on a specimen collection means

Daily cleaning and disinfection of laboratory workstations are essential to

The specific gravity of urine provides information about its