Basal Barnes Test
The Basal Barnes Test was developed by Dr Broda Branes MD.PhD. in 1942. It is used to indicate Basal Metabolic Rate (BMR) - the rate at which your metabolism is operating. This test is qualitative and is thought to be useful in indicating the possibility of thyroid disorders by many Practitioners.
​
If your thyroid isn't working properly and there are no other factors at work (another illness, adrenal distress etc) your results are likely to differ from those of someone with normal thyroid function.

For those with low active thyroid (in the absence of other disease) this means a lower than average basal temperature and a weaker, slower than normal resting pulse rate. Conversely for hyperthyroid sufferers temperature and resting pulse rate may be elevated.
How to Perform the Test
Interpreting Your Results
​For under the tongue temperatures only
-
Normal temperature = 36.5ºC - 37.2ºC (97.7ºF - 99.0ºC)
-
If your average temperature is less than 36.5ºC (97.7ºF) hypothyroidism should be considered if the symptoms
Please complete the -
If your average temperature is above 37.4ºC (99.2ºF) hyperthyroidism is possible if the symptoms are present.
Please complete the if there is no other illness present to cause a fever
NOTE: There are other conditions that can suppress body temperature such as certain adrenal problems.Fro persistent symptoms that are not responding to treatment please see

What you Need to Perform the Test
Keep by your bed -
-
An oral thermometer
-
Pencil & Results Chart
It is important to perform the test at the same time, in the same way every morning and evening for 7-14 days
-
Upon waking - before you get out of bed - ​place the thermometer under your tongue
-
Let the reading settle until the thermometer beeps or buzzes, or as indicated in the instructions
-
Note the reading and mark it on your Results Chart
-
Take your pulse rate by resting an index finger on the pulse point in your wrist or neck
-
Count your pulse rate - number of beats - for a minute
-
Repeat both measurements before you go to sleep at roughly the same time each night
-
Collect results for 7-14 days then average the results. Refer to the results section below for an interpretation
