 Medicine and Mathematics,
a selection of answers from the Dr. Math archives.
 Doctors and Math
 How do doctors use math?
 Volume to be Infused by
Drip Factor
 A patient is to receive 1440 milliliters of fluid in 24 hours.
The drip factor is 15 drops per milliliter. How many drops per minute
should the patient receive?
 Administering Insulin
 If a doctor prescribes 30 units of insulin in 500 ml to be administered
over 2 hours, how many drops per minute should be administered if the
set is calibrated to deliver 20 drops per ml?
 Lung Cancer and Smoking
 Medical researchers know that the probability of getting lung
cancer if a person smokes is .34. The probability that a nonsmoker
will get lung cancer is .03. If 11% of the population smokes, what
is the probability that a person with lung cancer will have been a
smoker?
 Probability and Genetics
 Huntington's Disease
 I am doing a math paper on Huntington's Disease. What does
probability have to do with genetics?
 Probability of Infection
 How many of six hermits can be expected, on average, to get a
disease, assuming the disease is transmitted until an infectious
hermit visits an immune hermit, and assuming one hermit visit per
day?
 Test for Tuberculosis
 A test for tuberculosis was given to 1000 subjects, 8 percent of whom
were known to have tuberculosis... what is the probability of a
randomly selected person having tuberculosis...?
 Calculating Breast Cancer Survival Rates
 Survival of a group of breast cancer patients is 100 at year 0,
100*X at year 1, 100*X*X at year 2, 100*X*X*X at year three and so on
to year 10. How do I find the nth year survival?
 Counting Bacteria with Calculus
 The number of bacteria in a culture increases from 3000 to 9000
in 8 hours. If the rate of increase is proportional to the number
present, estimate the number of bacteria at the end of 24 hours.
 and visit Mathematics Awareness Month 2002, Mathematics and the Genome,
with theme essays:
 Mathematics and the Genome
 Microarrays, Mathematics, and Medicine
 and Mathematics Awareness Week 1994:
 Mathematics and Medicine  Math Forum
 Theme essay
 For information about how math is used in technology, in particular
environmental health and occupational health, see:
 Exactly How Is Math
Used In Technology?  Mathematics Department of the British Columbia
Institute of Technology
 and see:
 Proportional
Reasoning by Nurses  Annie and John Selden
