My cat's medicine reads:  Give 1 g per 5kg. He weighs 16 pounds and I
don't remember what the vet said to give him.  The medicine is a
powder & comes with a 1g scoop...how many scoops does he need?
   It's Sunday & I can't reach my vet till Tuesday. And yes, I should
really know how to figure this out myself but I don't want to give him
more (or less) medicine than he needs.  Can anyone give me the answer
today?

A 16-pound cat weighs 7.26 kilograms (kg).

1 scoop (1 gram) of the medicine is to be given for each 5 kilograms
of the animal's weight.

If we divide 7.26 by 5, we get 1.45, which is approximately one and a half scoops.

I used the metric/English conversion calculator on this page:

Weight Unit Conversion Calculator
http://www.cilicia.com/armo_conversion.html

I hope this is helpful. If anything is unclear or incomplete, please
request clarification; I'll be glad to offer further assistance before
you rate my answer.

Best wishes to you and your cat!
~pinkfreud

Sounds like somebody's kitty has intestinal parasites.

Pinkfreud is spot on, as usual. Going the other way you get 1 scoop
per 11 pounds of weight. Dividing 16 by 11 gives the same 1.45 scoops.

Please ensure your vet communicates more clearly in the future. (S)He
should be dope-slapped for this, though s/he probably relied on an
assistant to write up the instructions (which is no excuse). The
unclear nature of the instruction should be brought to his/her
attention to prevent others from potentially under or overdosing their
pets.

Every two years one review I have performed is a thorough scrubbing of
jargon from public information documents and instructions my practices
use. I have some friends go through an assortment of handouts and
other things with their teenage kids and they pull out anything not
clear to an average junior high school student. It works wonders.