MLT 280 Final Study Guide

Question 1

At what temperature is FFP thawed?

Answer 1

37

Question 2

In regards to BB, antigens and antibodies are found where?

Answer 2

Ag - RBC

Ab - serum/plasma

Question 3

What would a physician use to counteract an overdose of vitamin K?

Answer 3

coumadin

Question 4

Name two things that might cause the specific gravity of urine to be abnormally high:

Answer 4

dehydration
heart failure
radio dyes
heavy molecules

Question 5

Which class of immuno globulin is most commonly involved in multiple myeloma?

Answer 5

IgG

Question 6

What is the major iron storage compound?

Answer 6

ferritin

Question 7

Name the major characteristics of campylobacter

Answer 7

GN, “seagull wings”, grows at 42

Question 8

What organisms is associated with “rice water” stools.

Answer 8

Vibrio

Question 9

Name the genus and species of pinworm

Answer 9

Enterobius vermicularis

Question 10

Correst this WBC count:

WBC = 32.5
NRBC = 24

Answer 10

(32.5 x 100)/(100+24)

WBC x 100 divided by #NRBC per 100 WBC

WBC approx 26

Question 11

What is used to perform a reverse ABO in regards to a patient and reagent?

Answer 11

A1 cells, B cells and patient serum/plasma

Question 12

What units would be ABO compatible with a patient who is B+?
O-?
A+?

Answer 12

B+, B-, O+, O-
O-
A+, A-. O+, O-

Question 13

Which immune-mediated condition is characterized by a low platelet count and is found primarily in children?

Answer 13

ITP - idopathic thrombocytopenic purpura

Question 14

Rouleaux is a very commom phenomenon observed on peripheral smear in what patients?

Answer 14

Multiple Myeloma

Question 15

The catalase test is used to differentiate between which types of organisms?

Answer 15

Staph and Strep

Question 16

What is used to creat an autocontrol in BB?

Answer 16

patient rbc and patient serum

Question 17

When is Rhogam indicated?

Answer 17

Rh neg moms with RH pos babies

Question 18

What reafents are used in performin ABO/Rh typing

Answer 18

Anti-A, Anti-B, Anti-D

Question 19

What is the difference between active, passive, adoptive and natural immunity?

Answer 19

active - natural infection, vaccination
passive - AB derived from another person; in utero
adoptive - transfer of AG from immunized donor to non immunized pt ; transplant
natural - ability to resist infection by normally present body functions

Question 20

Calculate the creatinine clearance of a 24 hour urine specimen using the following formula and data:
(Uc/Pc) x (TV/1440)

Uc = 650 mg/L
Pc = 6.2 mg/L
TV = 1600 mL

Answer 20

(650/6.2) x (1600/1440) = 116.5

Question 21

Which blood groups are known for showing dosage?

Answer 21

Kidd
Duffy
MNS
Rh

Question 22

Which parasite infects most well water?

Answer 22

Giardia lamblia

Question 23

Plasma cells evolve from which type of cell line?

Answer 23

lymphocytes

Question 24

Calculate the dose or doses of Rhogam:

Fetal cells seen = 30
Adult cells counted = 2210

(fetal/Adult) x 100 = % fetal cells

(% x 50)/30 = vials of Rhogam

Answer 24

30/2210 x 100 = 1.36
1.4 x 50/30 = 2.3 + 1 vial
3 vials of Rhogam

Question 25

What organism causes GC?

Answer 25

Neisseria gonorrhoeae

Question 26

What is the best method for screening CSF for syphillis?

Answer 26

VDRL

Question 27

ANA are found in 95% of patients with what condition?

Answer 27

lupus

Question 28

What is the primary cause of tetany?

Answer 28

hypocalcemia

Question 29

pancytopenia

Answer 29

deficiency of all types of blood cells

Question 30

What factor is associated with hemophilia A?

Answer 30

Factor VIII

Question 31

Proteus Mirabilis is known for doing what on agar surfaces?

Answer 31

swarming

Question 32

On electropheresis, what would plasma sample show that a serum sample does not?

Answer 32

fibrinogen spike in gamma region *diagnostic of multiple myelome

Question 33

What platelet factor is instrumental in initiating the clotting process?

Answer 33

Factor 3

Question 34

In regards to urine bilirubin and urobilinogen, what would you expect to find on the dipstick of a patient with biliary obstruction?

Answer 34

positive bilirubin | low to absent urobilinogen

Question 35

Auer rods are often displayed in what type of leukemia or lymphoma?

Answer 35

AML

Question 36

Crystals in alkaline urine:

Answer 36

``` ammonium biurate amorphous phosphate calcium carbonate calcium phosphate triple phosphate ```

Question 37

Crystals in acidic urine:

Answer 37

``` amorphous urate calcium oxalate cholesterol cysteine leucine tyrosine uric acid ```

Question 38

What all can reagent pad for detection of blood in urine detect?

Answer 38

hemoglobin myoglobin intact rbc's

Question 39

What does FPIA stand for?

Answer 39

fluorescence polarization immunoassay

Question 40

Bilirubin is converted to what in the liver?

Answer 40

bilirubin diglucuronide

Question 41

What is the most specific cardiac marker for myocardial infarction?

Answer 41

troponin