Question

1. A 22 year old male was admitted through the emergency room following a car accident. After a splenectomy his hemoglobin was 6.2 g/dL. How many units of packed cells would be needed to possibly bring his hemoglobin up to 8.2 g/dL?

   	a.	4 units of packed cells
   	b.	3 units of packed cells
   	c.	2 units of packed cells
   	d.	1 unit of packed cells

1 points   

QUESTION 2

1. A 70 year old woman with chronic lymphocytic leukemia was going to have knee surgery the following week. On her pre-op physical it was noted that she only had a platelet count of 65,000/uL The surgeon's policy states that she would not do the surgery unless this patient's platelet count was at least 150,000/uL. How many random donor units would be required to bring her platelet count to this level?

   	a.	2-3 units of random donor platelets (increase of 30k-60k/uL)
   	b.	Between 9 and 17 units (increase of 5k-10k/uL)
   	c.	6 units in a pooled transfusion
   	d.	8 units in a pooled transfusion

1 points   

QUESTION 3

1. A 32 year old woman was being treated for severe anemia. She was going to receive a unit of leukocyte poor packed rbc's as an outpatient. How many wbc's are estimated to be in a leukocyte poor packed rbc unit?

   	a.	< 10 x 10 (8) wbc's
   	b.	< 2 x 10(12) wbc's
   	c.	< 5 x 10(6) wbc's
   	d.	< 5 x 10(8) wbc's

1 points   

QUESTION 4

1. What is the total volume of a whole unit of red blood cells?

   	a.	300 mL +/- 10%
   	b.	200 mL + / - 10%
   	c.	650 mL +/- 10%
   	d.	450 mL + / - 10%

Answer 1

1. one unit of packed cell volume possibly increase hemoglobin 1gm/dl.

so for increasing hemoglobin from 6.2 g/dl to 8.2g/dl, it means require increase of Hb 2 gm/dl.

so 2 units of packed cell will increase Hb from 6.2 to 8.2 g/dl.

correct answer is c.

2. Generally one unit random donor of platlet increase 5000 to 10000/ul so for increasing 85000/ dl  (150000-65000= 85000) will require between 9 to 17 units.

correct answer is b.

3. < 5 x 10(6) wbc's are estimated to be in a leukocyte poor packed rbc unit.

So correct answer is C.

4. Total volume of whole unit of blood is 350 ml but volume of red blood cell use to be 200 ml+/_ 10%.

correct answer is b.