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Clin Lab
CLin Lab Critical Values
68
Medical
Graduate
09/27/2009
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Term
Hemoglobin in males
Definition
14-18
Term
Hemoglobin in Females
 Definition
12-16
Term
Hematocrit in men
 Definition
39-49%
Term
Hematocrit in women
 Definition
36 - 46%
Term
MCV normocytic
 Definition
80 - 100
Term
MCHC in men
 Definition
13 - 37
Term
MCHC in women
 Definition
30 - 36
Term
MCHC ref range
 Definition
33 - 37
Term
MCH normocytic
 Definition
27 - 33
Term
Reticulocyte range
 Definition
0.5 - 2.5 % of RBC's
Term
Platelet count
 Definition
150 - 350 x103/mm3 or 109
Term
Total WBC count
 Definition

4.5 - 10.5 x 103

or 

(4500-10,500)
Term
RBC total
 Definition
4 - 6 million
Term
Neutrophil count
 Definition
50 - 70 %
Term
Bands (immature neutrophils)
 Definition
0 -4 %
Term
Eosinophil count
 Definition
1 - 4%
Term
Basophil count
 Definition
0 - 1%
Term
Lymphocyte count
 Definition
20 - 40%
Term
Monocyte count
 Definition
4 - 8 %
Term
Mild anemia range
 Definition
10 - 12
Term
Moderate anemia range
 Definition
8 -10
Term
Severe anemia range
 Definition
< 8
Term
Serum iron
 Definition
50 -100
Term
Serum Feritin
 Definition
50 -200
Term
Total Iron Binding Capacity
 Definition
300 - 360
Term
Myoglobin ref range
 Definition
< 100
Term
Myoglobin first detected
 Definition
1 -4 hours
Term
Myoglobin peak
 Definition
6 - 9 hours
Term
Myoglobin returns to normal
 Definition
24 - 36 hours
Term
Total Creatine Kinase first detected
 Definition
4 - 8 hours
Term

Total Creatine peaks

 Definition
24 - 36 hours
Term

Total Creatine returns to normal

 Definition
2 -3 days
Term
CK-MB first detected
 Definition
4 - 6 hours
Term
CK - MB peaks
 Definition
12 - 24 hours
Term
CK-MB returns to normal
 Definition
24 - 36 hours
Term
CK-MB ref range
 Definition
0 - 5
Term
Troponin I and T ref range
 Definition
0 - 0.6
Term
Troponin I and T first detected
 Definition
4 - 6 hours
Term
Troponin I and T peaks
 Definition
14 - 18 hours
Term
Troponin I and T returns to normal
 Definition
10 days
Term
Desirable total Cholesterol levels
 Definition
<200
Term
High Total Cholesterol levels
 Definition
>240
Term
Desirable HDL levels
 Definition
>60
Term
Low HDL levels
 Definition
<40
Term
Desirable LDL levels
 Definition
<100
Term
Very high LDL levels
 Definition
>190
Term
Normal Triglyceride level
 Definition
<150
Term
Very high Triglyceride level
 Definition
>500
Term
Equation for calculating LDL
 Definition
LDL = total cholesterol - (VLDL +HDL)
Term
Equation for calculating cardiac risk
 Definition

cardiac risk = total cholesterol / HDL

 

(the lower the ratio, the lower the risk)
Term
Bleeding Time test  ref range
 Definition
2 - 9 minutes
Term
Prothombrin Time ref range
 Definition
10 - 12 seconds
Term
Activated Partial Thromboplast Time (APTT)
 Definition
20 - 36 seconds
Term
Normal serum Na
 Definition
135 - 145
Term
Normal serum K
 Definition
3.5 - 5.0
Term
Normal serum Cl
 Definition
98 - 108
Term
Normal serum Total CO2
 Definition
23 - 30
Term
Normal Serum Osmolality
 Definition
280 - 290
Term
Normal urine osmolality
 Definition
50 - 1200
Term
Osmolality gap 
 Definition
> 10 is pathologic
Term
Equation for calculating anion gap
 Definition

anion gap = Na - (Cl + HCO3) 

 

or 

 

anion gap = Na - (Cl + CO2)
Term
Anion gap ref range
 Definition
8 - 14
Term
pH ref range
 Definition
7.35 - 7.45
Term
pCO2 ref range
 Definition
35 - 45
Term
HCO3 ref range
 Definition
22 - 26
Term
pO2 ref range
 Definition
80 -100
Term
O2 Saturation ref range
 Definition
95 - 100%
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