I would consider 10 WBC in the CSF as normal in a 2 month old. Remember
the statistical methods used to derive the range of normal--by definition,
5% of disease-free individuals will be labeled "abnormal" by a test
derived by this method. Therefore, a patient with 10 WBC is not
necessarily abnormal, but, when compared to others of his age, he/she has
only a 5% chance of being normal. I'd bet 10 WBC in this child is normal.
It's a shame we can't have baselines for evry individual for evry test,
then we wouldn't need the range of normal.
See Riegelman R and Hirsch S. Studying a Study, Testing a Test. Available
in your local med school bookstore.
111 Michigan Ave, NW
Washington, DC 20010
(202) 884-3253 OFC
(202) 884-3573 FAX
[log in to unmask]
On Fri, 18 Oct 1996, Razack Saleem wrote:
> 2 month old boy came to ER with Fever without focus (40.1 degrees C).
> very irritable. Had received DPT 36 hrs. previously. Otherwise looked
> Full septic work-up was done: CBC, Urine unremarkable. LP showed
> 1RBC/mm^3, 10 WBC/mm^3 (35% lymphs, 70% monos).
> My Question:
> Can you have CSF pleocytosis following DPT?
> Saleem Razack, MD
> Montreal Children's Hospital
> [log in to unmask]
> For more information, send mail to [log in to unmask] with the message:
> info PED-EM-L
> The URL for the PED-EM-L Web Page is:
For more information, send mail to [log in to unmask] with the message: info PED-EM-L
The URL for the PED-EM-L Web Page is: