Mean lab values

Question 1

CBC (stick 4)

Answer 1

WBC 4,500-11,000 per ul

Hbg
M13.5-17.5 g/dL
F 12-16

Hct (% blood volume that is RBC)
M 39-49%
F 35-45%

platelets
150,000-450,000 per ul

Question 2

RBC indices

Answer 2

RBC
M 4.3-5.7 x 10^6
F 3.8-5.1 x 10^6 per ul

MCV (size of RBC)
80-100 fl

MCH (mean corpuscular Hb- amt Hb per cell)
26-34 pg/cell

reticulocyte count
0.5-1.5%

Question 3

glucose/A1c

Answer 3

HgA1c 5-6.5%

glucose 70-115 mg/dl

Question 4

WBC differential

Answer 4

Never Let Monkeys Eat Bananas

neutrophils (PMNs) 57-67% bacterial infection

• seg neutrophils 54-62%
• bands 3-5%

lymphocyts 23-33%
T cell- killer cells
B cell- Ab

monocytes (macrophages) 3-7%
high-infection

eosinophil 1-3%
allergies, *parasites

basophils 0-1%
long term allergic response

Question 5

coagulation labs

Answer 5

PT 11-15 sec
extrinsic- warfarin

aPTT 20-35 sec
intrinsic- heparin
therapeautic 60-90sec

INR
0.8-1.2
therapeautic 2-3 (warfarin tx)

Thrombin Time (TT)
6.3-11.1

bleeding time
2-7 min

fibrinogen 200-400

d-dimer

Question 6

inflammatory markers

Answer 6

ESR

M

Question 7

changes Hg

Answer 7

M 13.5-17.5
F 12-16

high Hg- dehydration
lung disease
heavy smoking

low Hg-
iron, B12, folate lack
liver cirrhosis
bleeding 
kidney disease
bone marrow cancer

Question 8

WBC level changes

Answer 8

4,500-11,000

high WBC- bacterial infection
stress/exercise/trauma

low WBC
chemo
radiation tx
immune disease

Rx affect greatly

Question 9

WBC and Rx

Answer 9

raise WBC
*aspirin
*heparin
allopurinol
steroids
EPI

lower WBC
*chemo Rx
*diuretics
ABX
anticonvulsants
antihistamines
antithyroid
sulfonamides

Question 10

BMP (chem-7)

Answer 10

Na 135-145
Cl 98-106
BUN 7-18

K 3.5-5.1
HCo3 22-29
Creatinine 0.6-1.2

Glucose 70-115

also include Ca 8.4-10.2

Question 11

comprehensive metabolic panel (CMP)

Answer 11

BMP + heptaic panel function

Alk Phos
M 38-126 mU/ml
F 70-230

ALT (SGPT)
7-40 U/L

AST (SGOT)
7-40 U/L

Total billirubin 0.2-1.0 mg/dl

Total protein
6.0-8.0 gm/dl

Albumin
3.5-5.0

+GGTP (some)
M 9-50
F 8-40

Question 12

changes to BMP electrolytes

Answer 12

BUN

Creatinine~ kidney function

high Na >145- dehydration, renal failure, cardiac failure

low Na 5.1
dehydration, renal failure
Addisons (renal)

low K 106
dehydration

low Cl 29
low-diarrhea

Question 13

changes to BMP kidney

Answer 13

BUN
high >18
renal failure, dehydration (normal creatinine)
low1.2
renal failure

Question 14

changes Ca, glucose

Answer 14

Ca
high >10.2
1o hyperPTH
bony metastasis

low Ca115 DM, cushings

Question 15

changes to CMP (hepatic function tests)

Answer 15

Alk phos