Need to Know Lab Values Flashcards
Na+
135 - 145 mEq/L
K+
3.5 - 5.3 mEq/L
Ca++
8.5 - 10.6
ionized Ca++: 4.5 - 5.2 mEq/L
Cl-
98 - 107 mEq/L
Mg+
1.5 - 2.5 mEq/L
PO4
2.5 - 4.5 mEq/L
DEADLY LABS (5)
- pH: in the 6’s
- K+: 6+
- CO2: in the 60’s
- PO2: 60’s and under
- Platelets: below 40,000
Gastric pH
Equal or less than 4
Respiratory secretion pH
> 5.5
Urine pH
4.5 - 8
Blood pH (arterial)
7.35 - 7.45
Urine specific gravity
1.010 - 1.030
Urine specific gravity
indicates fluid overload
1.008
SaO2 (normal)
95 - 98%
SaO2 (emergency)
Less than 86%
SaO2 (life-threatening)
Less than 70%
Low pH / High PaCO2
Respiratory Acidosis
High pH / Low PaCO2
Respiratory Alkalosis
Low pH / Low HCO3
Metabolic Acidosis
High pH / High HCO3
Metabolic Alkalosis
PaCO2
35 - 45 mm/Hg
HCO3
22 - 26 mEq/L
PaO2
78 - 100 mm/Hg
Central venous pressure (CVP)
3 - 12 cm/H2O
CVP (hypovolemia)
Less than 3%
CVP (hypervolemia or poor cardiac contractility)
> 12 cm/H2O
Lead
Less than 9 mcg
Ammonia
15 - 45 mcg/dL
Creatinine clearance
1.67 -2.6 mL/sec
Creatinine (adult)
0.7 - 1.4 mg/dL
Creatinine (child)
0.4 - 1.2 mg/dL
Blood Urea Nitrogen (BUN)
7 - 18 mg/dL
“Think 8 - 30”
Note: if elevated**
- *check for DEHYDRATION
- *give fluids :)
BUN (> 60 yrs)
18 - 20 mg/dL
Glycosylated Hgb (HgbA1c)
4 - 6%
Albumin
3.5 - 5.5 g/dL
Prealbumin
15 - 36 mg/dL
Cholesterol
Less than 200 mg/dL
Glucose Tolerance Test (GTT)
Fasting: 60 - 110 mg/dL
1 hr: 190
2 hr: 140
3 hr: 125
LDL
Less than 139 mg/dL
HDL
Men: 35 - 70 mg/dL
Women: 35 - 85 mg/dL
Amylase
6 - 160 U/dL
Lipase
Less than 200 m/ul
LDH (lactate)
100 - 225 u/L
Hct %
Men: 42 - 52 %
Women: 35 - 47 %
Children: 35 - 45 %
Hgb (g/dL)
“Think: 12 - 18”
Men: 13 - 18
Women: 12 - 16
Children: 11 - 12.5
RBC (mm3)
“Think 4 - 6 million”
M: 4.6 - 6.2
W: 4.2 - 5.4
C: 3.5 - 5.2
Note: if LOW**
**Assess for BLEEDING
WBC (mm3) Total
“Think: 5,000 - 11,000”
M: 5,000 - 10,000
W: 5,000 - 10,000
C: 5,000 - 13,000
Platelets
150,000 - 400,000 mm3
PT
9.5 - 12 sec
for Coumadin effectiveness
PTT
20 - 39 sec
for Heparin effectiveness
Sed rate
Male: 0 - 15 mm/h
Female: 0 - 25 mm/h
AST (SGOT)
8 - 40 u/L
ALT (SGPT)
8 - 40 u/L
Bilirubin Total
0.3 - 1 mg/dL
Bilirubin
Indirect (unconjugated)
0.2 - 0.8 mg/dL
Bilirubin
Direct (conjugated)
0.1 - 0.3 mg/dL
Bilirubin
Newborn
1 - 12 mg/dL
>15 is critical
INR
2 - 3 (therapeutic range)
Note: therapeutic level (higher chance to BLEED too much)
Absolute Neutrophil Count (ANC)
> 500
T-Lymphocyte Count (CD4)
200 (HIV)
O2 Sat
93 - 100
BNP
Under 100 (
