# Units question

1. Nov 14, 2007

### eschwarz

in medicine, a persons platelet count is often reported as either N/m3 or K/uL. are these equivalent, how can one convert between them??

2. Nov 14, 2007

### mgb_phys

Don't know what N and K are - but must presumably be dimensionless.
uL = micro litre = 10^-9 m3

3. Nov 14, 2007

### Integral

Staff Emeritus
Not sure how this could be seen as a PreCalculus Math problem???

Moved to Biology.

4. Nov 15, 2007

### jim mcnamara

In the US it is reported as a number per cubic millimeter.

150000 / $$mm^{3}$$ or $10^{-6}l$ a microliter.

Last edited: Nov 15, 2007
5. Nov 15, 2007

### jim mcnamara

Oops. I didn't really answer the question -

A microliter is the SAME volume as a cubic mm. Your m3 should have been a mm3, I guess. N is just any old number, preferably from 150,000-400,000 would be nice,
and K is any old number as well.

So you do not have to convert anything.