Three Tubes of CSF Are Submitted to the Laboratory

question 28

Multiple Choice

Three tubes of CSF are submitted to the laboratory.They are numbered 1,2,and 3 and show blood in all tubes but decreasing in amount as one inspects tubes 1 through 3.This observation should be interpreted as:

• A) The tubes were numbered in the wrong sequence, as one would expect increasing amounts of blood
• B) A traumatic or bloody tap is suspected and, in all likelihood, no pathogenic significance should be attached to the presence of the blood
• C) The pathologic presence of RBCs and reported to the supervisor immediately
• D) A pathologic presence of RBCs, but because the RBC morphology is normal there is minimal importance

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