Questions about tests of the blood that help to estimate the component(s) in it.
Questions tagged [blood-tests]
125 questions
6
votes
1 answer
Why can't blood samples be taken from the legs/ankles as well arms/wrists?
This is a genuine question, which so far I've been unable to find an answer to.
Some time ago when my wife was pregnant, she seemed to be constantly needing to have samples taken for various tests etc. My wife is very petite, and it was an enduring…
user1751825
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6
votes
2 answers
Why should I fast before taking blood tests?
This always puzzled me. Not only because it is a nuisance, but also because I cannot understand it.
Whenever I have to take a blood sample to run some tests on it, I am always told not to eat anything for about 12 hours before the test.
That makes…
Luan Nico
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- 4
5
votes
1 answer
Puncturing a vein vs. an artery
I was recently with my grandmother at the Emergency Department because she had difficulty breathing.
After the clinical examination by a doctor, she received both an artery and a vein puncture.
Why is it necessary to take blood from a vein and an…
Becky
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5
votes
1 answer
Does mastectomy permanently prevent using the arms for blood samples?
This question,
Why can't blood samples be taken from the legs/ankles as well arms/wrists? ,
refers to
Specimen Collection Procedure - PERFORMING A VENIPUNCTURE | Akron Children's Hospital,
which says:
Sites to avoid:
…
The upper extremity on…
Ray Butterworth
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5
votes
1 answer
Understanding the difference between IgG and IgE results
The following results are an example of an independent blood test and the differences between IgE and IgG. The bars in black are examples of IgE and those in grey IgG.
If i use the example of cabbage which has a low IgE but a high IgG, what does…
Motivated
- 171
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4
votes
1 answer
What is the point in checking non-fasting glycemia?
I wonder what the point is in measuring the glucose level in a non-fasting blood test.
Example (real case):
Checking the fasting glycemia can amongst other things detect the presence of diabetes, but I don't know what the non-fasting indicates,…
Franck Dernoncourt
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2
votes
2 answers
How else can a phlebotomist lessen my pain, on top of using a baby needle?
My grandpa's specialist has ordered quarterly blood tests for him.
Most of LifeLabs' phlebotomists (in Ontario, Canada) venipuncture very painfully.
Though he didn't mention algophobia, he chanced on a kinder phlebotomist yesterday who was canny…
user14
2
votes
1 answer
Which lab value skeleton diagrams are used to display results for CBC, Chemistry, coagulation panel, etc?
Which lab value skeleton diagrams are used for discrete, cbc/cbcdiff, chem, and coag results?
sshakir
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2
votes
0 answers
How accurate are blood count tests?
I just started to read about blood count, I am wondering how accuratelly can be determimed the number of red blood cells in case of Rouleaux formation or agglutination of red cells?
Mokus
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1
vote
1 answer
Baby vs. Butterfly Needle
How do they differ? They're mentioned here. I prefer a smaller needle to lessen pain for blood tests.
user14
1
vote
1 answer
Online doctor consultation?
I'm interested in paying a doctor to chat with me online to help explain my blood test results. Does such a thing exist? And do you know of any affordable good options?
larry909
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vote
1 answer
Is There Any Point In Getting Lab Tests Done If I Can't Find a Primary Care Physician?
I've been seeing a therapist for depression and I've been requested to get a physical done so I can have my vitamin D, testosterone levels and thyroid checked. Unfortunately I live in a rural area where there are not nearly enough doctors and I have…
agradine
- 113
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1
vote
1 answer
The sugar/glucose is one point too high
I am 60 and I got my first blood test in a few years.
The glucose is 101. the range is 65-100. My doctor wrote this:
The sugar/glucose is one point too high. You should try to eat fewer
carbs (rice and pasta) and less sugar to help keep this…
Tony
- 113
- 2
0
votes
2 answers
Why do Vacutainer blood containers contain additives? Are they really necessary and have an effect on blood analysis?
Just a basic medical science question. Is a vacutainer necessary for use in venous whole blood sample collection? Also is the needle with plastic holder required? Can we not draw blood using a sterile syringe and place it into containers?…
Nederealm
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