Hematology And Immunology Flashcards
1
Q
Neutrophils
%
⬆️
⬇️
A
60-70%
⬆️ acute infection/appendectomy, stress, increased release of epi
⬇️ neutropenia, malignancies, marrow hypoplasia
2
Q
Normal platelets
A
150,000-400,000
3
Q
Easy bruising occurs when platelet count falls to
A
50,000
4
Q
Bleeding occurs when platelet count falls to
A
25,000
5
Q
PT
A
Measures factor VII
Normal 12-15 secs
6
Q
INR
A
Measures extrinsic pathway of coags
Normal 1 unit/ml
7
Q
aPTT
A
Normal 25-40 secs
Assess intrinsic coag system
8
Q
Thrombin
A
Amount of time needed for thrombin to convert fibrinogen to fibrin
10-15 secs
9
Q
Fibrinogen
A
200-400
10
Q
D-dimer
A
0.5
Specific test for DIC
11
Q
Absolute neutrophil count
A
12
Q
Lymphocytes
%
Increased with:
Decreased with:
A
10-40%
⬆️ Mono, Hep, infection
⬇️ immunodeficiency, corticosteroid therapy, ACTH administration
