Harr

Question 1

CSF is formed by ultrafiltration of plasma through the:

A. Choroid plexus
B. Sagittal sinus
C. Anterior cerebral lymphatics
D. Arachnoid membrane

Answer 1

A

Question 2

3. When collecting CSF, a difference between opening and closing fluid pressure greater than 100 mm H2O indicates:

A. Low CSF volume
B. Subarachnoid hemorrhage
C. Meningitis
D. Hydrocephalus

Answer 2

A

Question 3

*4. Which of the following findings is consistent with a subarachnoid hemorrhage rather than a traumatic tap?

A. Clearing of the fluid as it is aspirated
B. A clear supernatant after centrifugation
C. Xanthochromia
D. Presence of a protein in the sample*

Answer 3

C

Question 4

5. The term used to denote a high WBC count in the CSF is:

A. Empyema
B. Neutrophilia
C. Pleocytosis
D. Hyperglycorrhachia

Answer 4

C

Question 5

Given the following data, determine the corrected CSF WBC count:

A. 8/uL
B. 142/uL
C. 120/uL
D. 145/uL

Answer 5

B