In the activated partial thromboplastin time test (APTT), one of the reagents is a phospholipid. In vivo, this phospholipid is supplied by which of the following?

The creatinine clearance is reported in

CLIA oversees:

A 45-year-old male wants to donate a unit of allogeneic whole blood. The following information was collected at the time of the donor interview: Blood pressure 200/100 mmHg History of hepatitis at age 7 Currently taking Accutane for acne Antibiotics 6 weeks ago for sinus infection Which of these parameters could result in permanent deferral of this donor?

A CSF specimen arrives in the laboratory. The outside of the container is visibly contaminated with blood. The receiving technologist calls the floor to inform them that the test will not be performed because the tube is contaminated. The physician calls the supervisor to complain. Which should be done next?

A patient’s initial CBC results are: RBC                             3.32 x 109/uL Hb                                6.8 g/dL Hct                               23.4% WBC                            6.3 x 103/uL Platelet count              345 x 103/uL   Based on these results, which is the appropriate follow-up test?

The following ABO/D results were observed on a routine type and screen for a patient going to surgery: Anti-A      Anti-B     Anti-D     A Cells     B Cells       4+             0             0             1+            3+ The clinical laboratory scientist should

What is the minimum eligible weight for allogeneic whole blood donors?

A patient has severe anemia of chronic disease. Which of the following red cell index values best correlated with the expected blood smear morphology?  

A 16-year-old female is seen by her family physician. She has noted that she bruises easily and feels tired all the time. The physican ordered a CBC: RBC   2.92 x 1012/L Hb   8.9 g/dL Hct  0.267 L/L WBC  3.3 X 109/L Platelet count  95 x 109/L Based on these findings, what is the appropriate follow-up test?