7
votes
Accepted
Are medical units pertaining to blood-tests, etc. standard/universal? Or vary from country to country?
While the measured quantities are the same across border, both names and units can vary.
The main difference is often the unit used for the concentration of each analyte : either mass per volume or ...
- 251
7
votes
Accepted
Markings on a 3ml syringe
Minim (unit): Part of the Apothecary system. It is rarely used anymore(some countries and areas still use the apothecary system) and is a alternative to the drop(which was formerly the smallest unit ...
- 2,975
6
votes
Accepted
Is there a medical term for the thickness of the human torso, as measured from its back to its front?
Sagital abdominal diameter is measured:
after a normal expiration while in the supine position with bent knees on a firm examination table and without clothes in the measurement area (Fig. 1)... at ...
- 3,090
5
votes
Accepted
Wrist Blood Pressure Monitor Accuracy?
Take both to your doctor's office the next time and compare them to the manual cuff. There are many models that can be calibrated that way.
Not all models are as accurate as others. This article ...
- 5,784
3
votes
Accepted
Could sleep apena outcomes be improved by adding sensors to measure the location and movement of the jaw?
There are specialists who do different degrees of positional assessments - specifically orthodontists, dentists, or maxillofacial surgeons (usually those who specialize in TMJ). Also, some practicing ...
- 5,784
3
votes
Accepted
Melanocyte count in our skin
The count of melanocytes per square mm depends on the body region and 1500 seems to be the upper limit. Interestingly in different races, the number of melanocytes is THE SAME.
Quoting from:...
- 354
2
votes
Accepted
Why is blood glucose measured using molar concentration internationally?
Short answer
Using mmol/L helps with revealing some useful relationships between groups of analyzed substances while using mg/dL might obscure those relationships.
Long anwer
I wasn't able to find ...
2
votes
Could sleep apena outcomes be improved by adding sensors to measure the location and movement of the jaw?
As I pointed out in the comments under your other related question, mandibular advancement devices are not a new idea.
From my experience as a diagnosed sufferer of chronic OSA (Obstructive Sleep ...
- 6,164
2
votes
What are normal values for EMG/nerve conduction studies?
This paper might be of interest to you (1)
They have attempted to summarize together a table of the values for the common upper and lower limb nerves including both sensory and motor.
It is quite ...
- 176
2
votes
Who decides the "normal" values for blood count?
Generally these decisions are "made" by work groups of specialists in the field. Your question is very general. There are so many measurements that can be done from blood samples that there is no way ...
- 466
1
vote
Why are health/epidemiology measures usually multiplied by 1,000, 10,000, 100,000, etc.?
Just for convenience, like you point out. The same thing is done in nearly every science, often by changing the SI units scale. We talk about weights of humans in kilograms, but measure drug doses in ...
- 13.8k
1
vote
How many mL of blood is typically drawn for a HIV blood test?
HIV blood tests (for antigens and antibodies) are, at least where I practice, 4mL. However, if your doctor wants other blood tests she might add 1-2 vials of the same size. Depends on the organisation ...
1
vote
Accepted
What (if any) are the measurement units for neurotransmitters?
These substances are measured in mass concentration (Example: Dopamine), that is, mass per volume. The standard SI unit for this is mg/ml, but I've also seen ng/ml or other units.
This is because ...
- 6,772
1
vote
gauge R&R of time varying data: how to discriminate between equipment variation and actual signal variation?
If you measure only your heart rate, you can only provide measures of the "population" of your own heart rate. You should not take a sample from one individual as indicative of the population of all ...
- 121
1
vote
Unit of the daily recommended amount of calories
That figure is in kilocalories. A human needs about 2000 kilocalories per day.
Sometimes a kilocalorie is described as a "big calories or a "Calorie", but to me that's more confusing than helpful.
- 211
1
vote
What level of alcohol in food is dangerous for children?
Google "alcohol content of bread" and you'll see:
1.9%
Alcohol. However, during the baking process, most of the alcohol in the dough evaporates into the atmosphere. This is basically the same ...
- 611
1
vote
Normal resting heart rate and how to measure it
You must consider here why you want to measure your resting heart rate. While one may argue whether you should measure it in the morning while you are still in bed or after you have eaten breakfast, ...
- 2,260
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