When the nurse observes melena, she is aware that a minimum of _____ to _____ mL of blood has been deposited into the GI tract
a. 25; 50
b. 50; 75
c. 75; 100
d. 100; 120
B
For the symptom of melena (dark, tarry stools) to appear, a minimum of 50 to 75 mL of blood must have entered the GI tract.
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The nurse is caring for several clients who have student nurses assigned to their care
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