Labs Flashcards
Hemoglobin (Hgb)
Females 12-16
Males 14-18
Measures oxygen carrying proteins in the blood. Low hemoglobin can mean anemia, high hemoglobin can be from high altitude, smoking, dehydration, polycythemia.
Hct:Hb should be 3:1
Hematocrit (Hct)
Female 37-47%
Male- 42-52%
Measures percentage if volume of whole blood made up of red cells.
Hct:Hb should be 3:1
BUN
Normal range: 10 - 25
Blood Urea Nitrogen- Indicator of kidney and liver function. how well they remove waste from blood. High BUN = lower kidney function
Creatinine
Normal range: 1.2 - 1.5
Product of muscle breakdown, produced at fairly constant rate. Indicator of renal function.
Creatinine clearance
Normal range: 85 - 135
Amount of blood the kidneys can make creatinine-free each minute. Helps estimate GFR. An indicator of kidney function.
Serum Albumin
3.5 - 5.0
Indicator of kidney and liver function. Low can mean liver disease, inflammation, malnutrition, shock, nephrotic syndrome, Crohn’s, celiac & burns. High can mean dehydration
Potassium
3.5- 5.0
Electrolyte. Hyperkalemia can mean kidney disease, hypoaldosteronism, addisons, diabetes, dehydration, infection etc. Hypokalmia can be from nausea/vomiting or diuretics.
Chloride
98-106
High level usually indicates dehydration
*value from ATI
Sodium
136-145
Maintains osmotic pressure, acid-base balance and nerve transmission. Low sodium leads to seizures/neuron symptoms
Specific gravity
1.010 - 1.030
Calcium
9-11
Magnesium
1.3 - 2.1
Phosphate
3.0 - 4.5
Serum Osmolarity
285 - 295 mOsmol/L
ATI said 270-300 in a sample question rationale
Glycosylated Hemoglobin
4-6%
pH
7.35- 7.45
HC03
22-26
PCO2
35-45
PO2
80-100
O2 saturation
96-100