Chapter 14- Manual, Semiautomated, and Point-of-care-testing

Question 1

It is the average volume of the red blood cell, expressed in Femtoliters (fl)

Answer 1

Mean Cell Volume (MCV)

Question 2

What is the reference interval for MCV

Answer 2

80-100 fl

<80= microcytic
>100= macrocytic

Question 3

It is the average weight of hemoglobin in a red blood cell, expressed in picograms (pg)

Answer 3

Mean Cell Hemoglobin (MCH)

Question 4

What is the reference interval for MCH

Answer 4

26-32pg

Question 5

What RBC indices is not considered in the classification of anemias

Answer 5

MCH

Question 6

it is the average concentration of hemoglobin in each individual red blood cell .The units used are grams per deciliter

Answer 6

Mean Cell Hemoglobin Concentration (MCHC)

Question 7

What is the values for normochromic red blood cell

Answer 7

32-36 g/dL

<32=hypochromic
>36= hyperchromic

Question 8

it is used to assess the erythropoietic activity of the bone marrow

Answer 8

Reticulocyte Count

Question 9

T/F
the specific gravity of of the reticulocyte is lower that that of mature red blood cell

Answer 9

TRUE

Question 10

what is it called when a reticulocyte is released form the marrow prematurely

Answer 10

shift reticulocytes

Question 11

This test is use to detect or monitor the course of inflammatory conditions such as, rheumatoid arthritis, infections, or certain malignancies

Answer 11

Erythrocyte sedimentation rate (ESR)

Question 12

T/F
the ESR is directly proportional to red blood cell mass and inversely proportional to plasma viscosity

Answer 12

TRUE

Question 13

The most commonly used method that allows the detection of the highly elevated ESRs

Answer 13

Modified Westergren Erythrocyte Sedimentation Rate

Question 14

when it was first introduced, the specimen used was oxalate-anticoagulated whole blood

Answer 14

Wintrobe Erythrocyte Sedimentation Rate

Question 15

the most common counting chamber

Answer 15

levy chamber with improved neubauer ruling

Question 16

T/F
Statement I. Cells that touch the top and left lines should be ignored
Statement II. Cells that touch the bottom and right lines should be counted

Answer 16

FALSE

Cells that touch the top and left lines should be counted
Cells that touch the bottom and right lines should be ignored

Question 17

The diluting fluid for WBC

Answer 17

1% ammonium oxalate
3% acetic acid
1% hydrochloric acid

Question 18

The diluting fluid for RBC

Answer 18

Isotonic saline

Question 19

The diluting fluid for platelets

Answer 19

1% ammonium oxalate

Question 20

T/F

Statement I. if fewer than 50 platelets are counted on each side, the procedure should be repeated by diluting the blood to 1:20
Statement II. If more than 500 platelets are counted on each side, a 1:200 dilution should be made

Answer 20

Both are true

Question 21

it is a phenomenon refers of platelet adherence around neutrophils, producing a ring of satellite effect

Answer 21

Platelet satellitosis

Question 22

it is rarely performed because of the inaccuracy the count and questionable necessity

Answer 22

Red blood cell count