1
Q
Normal Sodium levels?
A
135 - 145
2
Q
Normal Potassium levels?
A
3.5 - 5
3
Q
Normal Chloride levels?
A
95 - 105
4
Q
Normal Bicarbonate levels?
A
22 - 28
5
Q
Normal Magnesium levels?
A
1.5 - 2.0
6
Q
Normal Calcium levels?
A
8.4 - 10.2
7
Q
Normal inorganic Phosphate levels?
A
3 - 4.5
8
Q
Normal ALT/AST levels?
A
8 - 40
9
Q
Normal Alk Phos Levels?
A
30 - 120
10
Q
Normal Amylase Levels?
A
25 - 125
11
Q
BUN
A
7 - 18
12
Q
Creatinine
A
0.6 - 1.2
13
Q
Conjugated Hyperbilirubinemia?
A
> 2.0 mg/dL or
> 20% of Total bilirubin
14
Q
Iron deficiency anemia
A
Decreased serum iron
Decreased % saturation
Increased TIBC
15
Q
Describe the Light Criteria
A
Exudative process if: Pleural fluid:serum
1) > 0.5 protein ratio
2) > 0.6 LDH ratio
3) LDH > 2/3 upper limit of normal serum >60
Normal serum LDH (45 - 90)
USMLE STEP 2 CK
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