few more practice questions.docx

The difference in performing an ESR using a Westergren method versus a Wintrobe method is

a. the Westergren requires dilution of the specimen

the Wintrobe requires dilution of the specimen

the Westergren is timed for 30 minutes

the Wintrobe is timed for 30 minutes

Leukopenia means

less than 10000 white blood cells/mL of blood

less than 5000 white blood cells /mL of blood

greater than 5000 white blood cells /mL of blood

greater than 10000 white blood cells /ml of blood

When preparing a reticulocyte smear

the stains used are new methylene blue or brilliant cresyl blue

the stain and blood must react together for 15 minutes prior to making the smear

the smear must be counterstained with Wright’s stain after drying

both a and b (the stains used are new methylene blue or brilliant cresyl blue

the stain and blood must react together for 15 minutes prior to making the smear)

all of the above

Which factor can cause a blood smear to be too thin?

angle of spreader is too high

angle of spreader is too low

a dirty spreader is used

too large a drop of blood is used

Which of the following blood products is kept in a -20°C freezer?

Albumin 25%

Cord Blood

Cryoprecipitate

Immune globulin

Platelets

An Rh positive mother should be concerned about HDFN

if the father was Rh negative

if this was her second child and she had not taken RhoGAM

should not be concerned about HDFN

none of the above

Which leads are read first on an ECG?

I,II and III

aVL, aVR and aVF

V1, V2 and V3

V4, V5 and V6

A white blood cell differential count

involves counting 500 white cells

involves determining the proportion of each white cell type as a percentage

involves determining the proportion of white cells to red blood cells

is done on a hemocytometer

two of the above

What is the optimum pH of the phosphate buffer utilized in the Wright's stain?

5.2 - 5.6

5.8 - 6.2

6.4 - 6.8

7.0 - 7.4

7.6 - 8.0

A patient with abdominal pain and diarrhea would be hospitalized in

respiratory isolation

reverse isolation

skin and wound isolation

enteric isolation

standard isolation

The augmented leads on an ECG are

attached to the chest

are attached to the arms and legs

are labeled I, II, and III

are the first leads read by the machine