Lab values

Question 1

Platelets

Answer 1

250,000-450,000

Question 2

WBC

Answer 2

4,500-17,500

Question 3

Hgb

Answer 3

11.5-15.2
Increases when dehydrated due to concentration of fluid in blood vessels
Decreases in fluid volume excess because blood is diluted

Question 4

Hct

Answer 4

Normally 3x the Hgb value

34-47%

Question 5

Cholesterol

Answer 5

65-230

Question 6

Bicarbonate (arterial)

Answer 6

19-25

Question 7

pH (arterial)

Answer 7

7.35-7.45

Question 8

Urine specific gravity

Answer 8

1.005-1.030
General indicator of hydration
– Except in infants d/t immature kidneys
Issues: increased d/t dehydration

Question 9

Creatinine

Answer 9

0.3-0.6

Question 10

Potassium

Answer 10

3.5-5.0
Found primarily in intracellular fluid
Issues:
– Hypokalemia= vomiting, diarrhea, sweating > loss in extracellular fluid > compensation of intracellular K > decrease in serum K
— S/S: cardiac arryhythmias, muscle weakness, hypotonia

Question 11

Glucose

Answer 11

60-110

Question 12

Sodium

Answer 12

138-145
Found in extracellular fluid
Moves with chloride
Functions: regulates body’s water content, maintains acid-base balance
Issues:
– Hypernatremia= fluid losses through skin, GI tract, or urine causes body fluid to become more concentrated
– Hyponatremia= fluid overload, third spacing, kidneys cannot excrete free water causes body fluid to be diluted

Question 13

Calcium

Answer 13

8.8-11.2

Question 14

BUN

Answer 14

4-20