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Questions tagged [blood-tests]

Questions about tests of the blood that help to estimate the component(s) in it.

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50 views

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?
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1answer
24 views

What are the factors that make veins easy for a blood test one day, and difficult the next?

I take blood tests quite frequently, and most the time the technicians (Phlebotomists) spend a lot of time searching both my arms for a good vein. I pump my fists, and they smack my arms (and of ...
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36 views

Does Blood Testing give meaningful insights in Vitamin/Mineral Deficiency?

I yesterday watched the documentary Vitamania by Dr Derek Muller, which is about the production, benefits and risks of vitamin supplements. In the film, he briefly talked about people being blood ...
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1answer
45 views

What software are there to use on laptop for blood analysis and diagnosis?

I wanted to know if there are any softwares that by installing on a notebook can allow me to do initial diagnosis of a patient at ordinary locations. Does anybody know what softwares are there or ...
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1answer
27 views

What approaches can I take to find out my blood type and Rhesus factor?

I need to find out my blood type and Rhesus factor. However, there is no medical necessity for this - it's just to know myself. (as such, I'm aware that medical insurance would likely not cover the ...
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1answer
24 views

Are metamyelocytes typically present on blood tests?

Is it normal to have metamyelocytes present on a blood test result? Basically, does it adhere to the standard morphology of the WBC & platelet or is it indicative of something abnormal?
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20 views

Is there any data about the significance of a blood serotonine level test and links to depression or other psychiatric diseases, or simply mood?

What does low or high blood serotonine levels tell us. Is there any data on the link between certain conditions and serum serotonine concentration?
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1answer
21 views

Online doctor consultation? [closed]

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?
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1answer
51 views

Checking nutrition balance

I've just started to explore nutrition. I assume that: a1) A human body needs some minerals and vitamins, which can be delivered either in food or as supplements a2) There's recommended daily ...
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37 views

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?
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1answer
100 views

ABO blood type mismatch

I have a question about blood types and seeming hereditary contradictions. The above image of an Eldoncard blood test, which shows quite clearly that the testee has AB- type blood. (see image!). The ...
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0answers
25 views

Can the foods you have been eating be detected through blood tests?

I know that things like sodium, cholesterol, and sugar levels can be found in blood (at least I think so.) But what about things like fruits and veggies? Can that be detected through bloodwork? Or ...
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1answer
719 views

I have natural immunity to Hepatitis B. Do I pose risk to others?

Some time ago I was rejected as donor and received following rejection letter: Just wanted to inform you that there was a positive infectious disease result for Hepatitis B. Unfortunately, we ...
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2answers
93 views

How fast can serum calcium, magnesium and potassium levels change?

Can serum electrolytes (such as Ca Mg or K) within NORMAL limits rise or drop substantially within 12-24 hours? Enough to go outside of normal range, even to the point of being symptomatic?
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590 views

What does the stability of blood test means for patient who have few pains in different parts of the body

What does the stability of a CBC (and all related tests) means for a patient who is not suffering anything besides few ache here or there like in stomach or the back? More generalized, if a blood ...
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28 views

Anemia and cancer

P.S.: If you think that this is a personal medical information, that should not be shared here on this site, I will be glad to delete the post immediately My relative was suffering for 3 years of ...
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2answers
107 views

Possible blood test after smoking weed

I'm going to a medical consultation early tomorrow (circa 5:45 AM) where might be a blood test. I was invited for a party tonight where I would drink and smoke marijuana (marijuana is illegal in my ...
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0answers
26 views

Hep B Screening test is positive, but neutralization test is negative

I've just received a letter from a place where I donated plasma. The letter says that I might be infected with hep b. They performed two blood tests. First screening test is positive, however the ...
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1answer
447 views

Reason behind testing blood when someone is suffering from Common cold and fever?

What does testing blood helps identifying in case of Common cold or fever? This article about Common cold states, a doctor may do a throat or nasal culture, or blood test to rule out a secondary ...
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1answer
11 views

What does CRP decreased result means within 2 months [duplicate]

What does it means when you repeat all your blood test between 2 months and all the result are within range and exactly the same as previously, but a test called CRP decreased from 2 to 0.98. Does it ...
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1answer
19 views

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 ...
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1answer
53 views

Hospital says their blood test caused sepsis. How serious is this?

My wife went to an Ontario (Canada) public hospital and they performed a blood test, among other things. The test revealed a presence of bacteria in the blood. They said they will send it for analysis ...
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0answers
47 views

On blood tests why do monocytes have a standard range of just “%”? [closed]

On blood tests why do monocytes have a standard range of just "%"? Without a standard range how does one know if the patients value is low or high?
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24 views

Is undermethylation considered a legitimate diagnosis?

Apparently undermethylation can be diagnosed using blood work. I googled it a bit, and what I saw seemed to suggest that it isn't widely accepted in the medical community. I'm wondering how ...
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0answers
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What are basic checks to be done yearly [closed]

I am a reasonably healthy 47 yo male. Not hypochondriac. I am wondering which basic medical tests should be performed, and in which cycle. I am thinking about tests per se (blood, urine,...), ...
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2answers
130 views

Blood Test Panel for weight loss in females

Is there a well regarded medical/academic type of blood panel test or list of items to get tested for, when unable to loose weight, despite proper diet and exercise efforts? For example, this comes ...
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0answers
10 views

Opposite Venous Blood pH Readings In Groups Of Patients?

Assume Group A and B are 2,000 people each. If one doctor found that, say, sodium bicarbonate alkalized all venous blood of patients in Group A, but another doctor found that sodium bicarbonate ...
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1answer
150 views

What do these blood tests mean in general and why do doctors ask for them before taking action?

My doctor ordered some blood tests for me. I would like to understand what each test is for, meaning what information could be gathered from the results. W.B.C. Platelets E.S.R. C.R.P. Alpha feto ...
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0answers
78 views

Can superficial injury and exercise elevate AST and LDH levels?

Reading the information available here and here, it's stated that both exercise and other injuries can cause elevated results on a couple of indicators commonly used to measure liver function. ...
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2answers
137 views

What CGM systems don't require fingerstick calibration?

Most continuous glucose monitoring (CGM) systems require you to still do fingerstick blood testing on a daily basis in order to calibrate them. But that defeats the purpose of why people want CGM ...
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0answers
13 views

Covariance matrix for Complete blood count

What is known about a (multivariate) statistical distribution of complete blood count? Especially about the covariance or correlation matrix (in a healthy population).
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1answer
53 views

Which blood test results would most indicate further testing for cancer?

As a member of the healthcare community, I've long been taught (as we have all) that test results are only valid in the context of symptoms and at the discretion of a healthcare professional. That ...
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1answer
37 views

Who decides the “normal” values for blood count?

I'm currently researching the values for a Complete Blood Count. Obviously different sources give slightly different values, usually due to rounding, but I found that some values consistently shifted ...
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0answers
797 views

EverlyWell - legit?

EverlyWell is a lab testing startup. I'm looking at their food sensitivity test, didn't find a whole lot of independent info online (other than blogger reviews that were paid by the company). Is it ...
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1answer
81 views

Check Lithium Related Side Effects Without Blood Test

Situation: A middle aged patient with no health insurance and a well documented history of moderate to severe bipolar disorder visits a low cost clinic. The patient has a just lapsed lithium ...
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1answer
1k views

How many mL of blood is typically drawn for a HIV blood test?

I hope this isn't too broad or unanswerable a question but I'm wondering how many mL of blood serum are typically drawn out for a blood test for HIV. What's the minimum that's typically required?
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0answers
23 views

Overview of Lab Tests/Results [closed]

I am a programmer that inherited an application that displays lab results from a database. I dont have any medical training and I am looking for information that explains lab test and/or results from ...
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2answers
56 views

Is there any test to identify bacteria?

When I got some upper respiratory infection the doctor always prescribed broad-spectrum antibiotics like amoxicillin. Is there any test to identify bacteria, and if so, why doesn't the doctor order ...
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1answer
47 views

Are medical units pertaining to blood-tests, etc. standard/universal? Or vary from country to country?

Are medical measurements/units pertaining to blood-tests and urine-tests standardized across the globe? Or are they different? (I thought the metric system was standard in science, but when I was ...
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0answers
193 views

Why would MPV be low, but Platelet levels be high?

What are the possible reasons for a blood-test to reveal low MPV levels, but high Platelet Count? It seems contradictory.... Also, WBC is high & Neutrophils levels are high.
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1answer
60 views

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 (...
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2answers
2k views

Specialist to treat low Sodium

My 74 year old Dad has lower Sodium and Chloride than normal in his bloodwork. After taking 1/2 teaspoon of salt with his dinner, the Sodium and Chloride levels are still low, but blood pressure is ...
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0answers
8 views

Why cold on the back hurts more than cold in the front?

I'd rather have appended this to the health group, but I guess the biology se was better for this. The question is, why is it that the cold, on the back, hurts, whereas the cold on the front, arms, ...
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0answers
30 views

Plasma concentrations Of Beta-Carotene and Retinol

I'm doing an analysis, and retinol and beta carotene are involved. I need to know : 1) Normal levels of dietary beta carotene and Retinol consumed (mcg per day); 2) Normal levels of plasma retinol ...
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1answer
49 views

Difficulty extracting blood

A little while ago, I had my blood drawn for lab work. They were only filling a small vial with it, but even so the nurse had a hard time getting enough blood to flow into the vial. What could cause ...
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0answers
47 views

Clarification with a prescription for blood tests

I have a pro long condition of hair loss. I consulted a dermatologist and he gave me list of blood tests which I should do before the next consultation. I have difficulty in reading one of the items ...
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1answer
39 views

Possible reason/s for increases in neutrophil, platelet, and WBC levels at the same time?

I took a routine blood test today, and my results came back with three abnormal results that the laboratory flagged. My WBC, platelet count, and neutrophil levels were all elevated: WBC: 11.8 ...
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1answer
45 views

Why is blood glucose measured using molar concentration internationally?

In the US, blood glucose is measured in mg/dL, while the rest of the world tends to use mmol/L. Is there any reason for using the molar concentration rather than the mass concentration? Or is it just ...
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1answer
2k views

When to take a blood test after a gout attack

Gout is caused by an elevated level of uric acid in the blood, which results in crystals forming in the joints. Once this reaches a critical level, the body responds by targeting the crystals, ...
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1answer
88 views

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 ...