The nurse notes that a patient with full thickness burns has an increase in hematocrit level. What should the nurse realize is causing this change in laboratory value?
a. Loss of intravascular fluid
b. Destruction of blood vessels
c. Increased function of platelets
d. Migration of white blood cells
ANS: A
A burn is followed by an initial decrease in cardiac output, which is further compromised by the loss of circulating plasma volume. In the first 48 hours after a burn, fluid shifts lead to hypovolemia and, if untreated, hypovolemic shock. Loss of intravascular fluid causes a relative increase in hematocrit. B. C. D. The increase in hematocrit level is not caused by destruction of red blood cells, increased function of platelets, or migration of white blood cells.
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