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Questions tagged [blood]

The liquid that circulates in the arteries and veins of humans and other vertebrate animals, carrying oxygen to and carbon dioxide from the tissues of the body, or an internal bodily fluid that performs a similar function in invertebrates.

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Hormone Definitions and Measurements

How are human hormones defined in the body and how are they measured? I understand that blood tests can be used to measure the amount of a hormone in the body, but how do we know which hormone ...
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1answer
35 views

How does the circulatory system know where to distribute oxygen and nutrients?

There is lots of information online about the circulatory system, but it never seems to answer the question of "targeting". When there is a change in the relative demand for blood, how does the ...
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2answers
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Is lipaemia the same as hyperlipidemia?

I'm translating a Russian text and one of the sentences goes like this: Среди сывороток были образцы с гемолизом и липемией. The serum samples contained samples with hemolysis and lipaemia. I ...
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1answer
61 views

Why can't we give blood within 8 days after taking an anti-inflammatory?

I'm used to regularly giving my blood and other blood components (plasma and platelets), but I was surprised the other day to see that one should not proceed to the donation if they consumed anti-...
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1answer
77 views

Can HIV patients get further infected by their own blood?

A person without HIV can get infected with HIV by, blood already infected with the virus entering into their body (for example). Can HIV patients get further infected by the for example ingestion of ...
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1answer
33 views

What diseases cause a rapid fall in hemoglobin count? [closed]

Which diseases would be likely to cause a fairly rapid decline in hemoglobin count? In this particular case, hemoglobin count went from 7.6 to 6.4 in 48 hours, despite 2 units of hemoglobin being ...
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0answers
34 views

After traumatic injury, what are the red “chunks” a victim coughs up? [closed]

Recently, I witnessed a pedestrian-vehicle collision. As I approached, nobody was rendering aid, so I took it upon myself to do so. The man wasn't breathing, so I applied basic first aid by tilting ...
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169 views

Mechanism of retrograde propagation of arterial thrombi

Quoting from _Robbins Basic Pathology 9th ed. Thrombi are focally attached to the underlying vascular surface and tend to propagate toward the heart; thus, arterial thrombi grow in a ...
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1answer
63 views

How do doctors deal with fear of blood?

For me personally it is very hard to watch scenes from movies/documentaries where the surgeon cuts patient's skin. I don't get any discomfort from seeing blood or wounds but it's almost unbearable to ...
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1answer
77 views

Why do surgeons wear blue aprons during surgeries?

In most cases, the surgeon wears a white apron, but during a surgery he is wearing a blue apron, why blue?
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1answer
16 views

How much time will take for receiving 1 bag blood?

I want an idea about time spent for taking 1 bag blood. I have a blood donor he will donate 1 bag blood. After taking his blood it will be transferred to a patient. Would anyone provide an idea how ...
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1answer
54 views

Put a finger in it? When is it appropriate to stop a bleed with your finger?

Can a arterial bleed be stopped by putting your finger/s in it? Like the one in your leg or a place where pressure can't be placed normally?
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Sugar and nitric oxide [closed]

studies show that sugar has a negative impact on our bodies ability to produce nitric oxide. I’ve been having difficulty trying to find out how much sugar consumption is required before it begins to ...
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1answer
111 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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Difference between Contusion, Haemorrage and Hematoma?

As per wikipedia these are the definitions: A contusion, commonly known as a bruise, is a type of hematoma of tissue[1] in which capillaries and sometimes venules are damaged by trauma, allowing ...
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Do beets dye your blood purple?

I was warned recently that eating beets can cause reddish-purple urine, which got me thinking. Blood is filtered by the kidneys to produce urine, high school biology. So if a meal of beets can dye ...
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1answer
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What keeps our organs in place?

Do they float iniside our "blood blob inside our body" or they are connected to our muscles ?
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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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What's the exact value of blood Ph and how is it corrected

what is the exact value of the blood ph, how is it corrected and at what precision ? Has there even been a real time high precision analysis of the blood ph ? where we could see the correction ...
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1answer
111 views

What happens when a hemophiliac woman gets her period?

If there was a woman who is also a hemophiliac/bleeder, what happens when she gets her period? Does her condition affect said period in any way, and if so, how? Would it be troublesome (more than ...
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Can you die from severing your penis?

I recently saw a very disturbing post history on Reddit about a person with the stump of a penis left, and no testicles, as he severed his penis by shooting it off and castrated himself. He said he ...
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0answers
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Ischaemia and sensitization

In Acupuncture, Trigger Points and Musculoskeletal Pain (3rd Edition), Baldry asserts the following: "When the Myofascial Trigger Point nociceptor-sensitizing substances bradykinin and prostaglandins ...
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1answer
3k views

What are the effects of swallowing own blood from nosebleeds?

I've seen people on the internet claim that you shouldn't tilt back your head during nosebleeds, because blood could get into your lungs or stomach. When I asked people I know what they do during ...
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2answers
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What would you call the following type of injury?

Having fallen onto your hands and knees on asphalt, the top layer of skin is gone from your wrists, and you can see tiny amounts of blood that are not coming out of anywhere in particular (perhaps the ...
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1answer
149 views

Health benefits from giving blood?

I heard a rumor that there were health benefits from giving blood. (The rumor claimed that doing so would help to "remove unwanted stuff from your bloodstream" so that your body could create fresh ...
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0answers
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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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2answers
59 views

Occasional medical tests and imageries

I ouce asked on Quora, why people do not do yearly blood tests and imaging, to prevent getting stage 4 cancers. The answers listed reasons not to do this: It would cost a lot of money (for the ...
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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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1answer
43 views

Is it true that I can't consume citric foods while on Warfarin?

I got diagnosed with a blood clot after a knee surgery and now my doctor told me that I need to be taking Warfarin for 3 months. I was talking to one friend of mine, who studied medicine and he said ...
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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
646 views

Tattoo on person with hepatitis b

Is it ok for a person with hepatitis b to get a tattoo? What are the risks? Will it make the condition worse?
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0answers
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What is the most advanced non-invasive technology these days for identifying clogged arteries?

What is the most advanced non-invasive technology these days for identifying clogged arteries?
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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
159 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
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How can a bone marrow transplant from a donor of a different blood type not get rejected?

As discussed here, one can change their blood type by getting a bone marrow transplant from a donor with a different blood type. Why would the bone marrow not be rejected, as the body's immune ...
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3answers
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Blood in urine without seeing it…?

I came from my doctor and he did a urine sample and said there was blood in my urine. I've never seen "blood" in my urine or had any issues with my kidneys so I was perplexed by this. Is this ...
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0answers
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I think I just coughed a little blood, have been dry coughing for 2-3 days. What should I do?

This is what my cough looks like, verify blood :( https://ibb.co/gD6Otv https://ibb.co/hE4nLa
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1answer
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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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1answer
53 views

Do fetuses' blood types ever cause Graft versus Host in the mother?

If a mother has type O blood, and a father has type AB, their children will almost certainly have either type A or type B. Considering a mother of type O blood will begin to produce antibodies against ...
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1answer
118 views

How can blood pressure be high but my pulse low?

Someone whose blood pressure reads 188/134 with a pulse of 62. Read a few more times even after she woke up it stays in that area. Calm, not taking any drugs, normal weight, good health and not sick ...
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0answers
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Is it necessary to hydrate before doing a double red cell blood donation?

So, I gave blood today, as is my habit about every 112 days, going on the apharesis machine to do a double red donation. After the donation, as usual, I found myself having to urinate more often than ...
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1answer
34 views

Stop bewilder when go up [closed]

How to stop bewilder ? When I siting and I go to get up then I bewilder.What is caused this and how can I treat this?
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1answer
387 views

Why is this clinical difference between central and peripheral hemoglobincyanosis?

While in central cyanosis we see cyanotic mucosae, we have in peripheral cyanosis a cyanotic peripheral. In central cyanosis we have a oxygenation problem and in peripheral cyanosis a low perfusion. ...
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1answer
520 views

Hemoglobin level is not increasing in blood - Why?

I have low level of hemoglobin in my blood. I include the followings in my food. Pomegranate,Iron syrups,Dates,Beetroot. Still my hemoglobin level is not increased properly. I want some suggestions to ...
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0answers
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Plausibility of 30 gauge draw?

What are the risks, complications, and problems associated with using a 30 gauge needle to draw blood from someone with otherwise average veins? What is the certainty of hemolysis and would it be even ...
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1answer
117 views

dangers of keeping blood in a jar

What are the dangers of collecting menstrual blood in a jar for a week and then paint with it? Will there be any dangerous bacteria in the blood that could be airborne? Is there any substance I can ...
3
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1answer
12 views

Existence of injection administering certification?

Is there a legal training, certification, or license that allows one to legally inject substances/medications into others? Is it illegal to inject others or aid in injecting others without such ...
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0answers
48 views

What are the effects of sipping blood?

Since childhood, I've noticed that when most people get injured they tend to sip the blood from where they got injured claiming that they are doing so, so as not to waste the blood, and furthermore ...
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1answer
723 views

what are the long and short term benefits of cold showers

Apart from the increased circulation and sperm production (in men) what long term and short term benefits can you get with a cold shower every day? To clarify, short term effects I'd mean immediate ...