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NBME 23 Answers
A 44-year-old woman comes to the physician because ...
Decreased CSF production by the choroid plexus
Mannitol can also be used to reduce ICP by drawing free water out of CNS
Howeveer, it can cause hypernatremia, pulmonary edema, and expansion of ECV can exacerbate heart failure
Standard lab values are incorrect, way to go NBME.
I think they mean to put mm Hg. Normal CSF pressure is about 100-180 mm H20 which equates to about 8-15 mm Hg.
I lost a bit of time wondering about that ugh lol
I thought there must be an obstruction in the ventricles somewhere preventing csf from getting to the spine. so pressure is low in spinal tap but in the head it must be really high.
could be pseudo tumor cereberi, ttt is also acetazolamide and is more common in female obese BMI 35KG/M
opening pressure could be normal in pseudo tumor cereberi