A patient has a hemoglobin of 7.1 g/dL.  The surgeon wants to raise the hemoglobin to 10 g/dL before surgery.  How many units of RBC need to be administered to this patient to raise the hemoglobin to the required level?

A patient with a warm autoantibody has a positive DAT.  The antibody screen was negative, but the eluate reacted uniformly with all normal cells and patient cells.  Why as the antibody screen negative?

If a group A individual reacts 3+ with A1 lectin, the person is a (an): 

The following results were obtained on a patient sample Anti                               Cells A        B       A,B              A1    B 4+       2+       4+             0        4+ Which of the following would best explain the above reactions?

In the case of DC Shunt Motor electromagnetic torque developed is

One type of enzyme testing involves

A white female’s red blood cells gave the following reactions upon phenotyping: D+, C+, E-, c+, e+ Which of the following is NOT a possible Rh genotype?

AHF concentrates are used to treat:

Once thawed, FFP must be transfused within:

The direction of rotation of conductor of a DC motor can be determined by