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Doctor insights on: Blood Culture

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Dr. Jeffrey Wint
103 Doctors shared insights

Blood Culture (Overview)

Blood cultures refers to taking a sample of blood and growing in the microbiology laboratory for invasive organisms. Typically blood cultures are used for bacteria but can also be used to try and identify fungal organisms in the blood like yeast.


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What's a blood culture used for?

What's a blood culture used for?

Bacteria in blood: To find out if there is bacteria in your blood. Read more

Dr. Jeffrey Wint
103 Doctors shared insights

Blood Culture (Overview)

Blood cultures refers to taking a sample of blood and growing in the microbiology laboratory for invasive organisms. Typically blood cultures are used for bacteria but can also be used to try and identify fungal organisms in the blood like yeast.


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My child had bloody mucousy stools. I took her to the ER and they tested for c-diff, e coli, blood work and cultures of her stools and blood. C-diff and e-coli were negative. This was sunday. It is now late wed. And still no answers. What could this be?

My child had bloody mucousy stools. I took her to the ER and they tested for c-diff, e coli, blood work and cultures of her stools and blood. C-diff and e-coli were negative. This was sunday. It is now late wed. And still no answers. What could this be?

Age?: In young infants my first thought would be an allergic reaction to the feed (bovine milk allergy can do this). In older kids i'd have tested for salmonella & shigella too. Some older kids with a colitis would do this. I'd meet with your pediatrician & go over your findings so far & move forward based on current findings. Read more

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My oncologist thinks I have an abscess. He did a blood culture so I will get results. Big painful lump still there. Is it inflammatory breast cancer?

My oncologist thinks I have an abscess. He did a blood culture so I will get results. Big painful lump still there. Is it inflammatory breast cancer?

Lump: Big painful lump is not classic for inflammatory breast cancer (ibc). Ibc does typically cause redness, warmth, and swelling but typically without a lump. This doesn't mean it's definitely not cancer, but you are doing the right thing in having it examined/cultured. Best of luck to you. Read more

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How long does it normally take to get blood culture results back?

How long does it normally take to get blood culture results back?

1-5 days: It can be as soon as one day but labs will usually incubate and monitor the cultures for up to 5 days to make sure nothing is growing. Read more

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Child has lower stomach pain. Hurts to move and touch. Urine dip said high white blood count and culture had no growth what could be wrong?

Child has lower stomach pain. Hurts to move and touch. Urine dip said high white blood count and culture had no growth what could be wrong?

Sounds like: Eosinophilic inflammation of bowel. How many eosinophils in blood? . I recently found that this is due to faulty oxidation in brain (sounds strange?) because this kind of inflammation is guided by a reflex mechanism via the vagus nerve that runs from the brain to the bowel and known as the "inflammatory reflex" I advise seeking local help. Read more

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What's a blood culture used for?

Bacteria in blood: To find out if there is bacteria in your blood. Read more

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Why would you need a blood culture?

Why would you need a blood culture?

Blood infection: If your doctors suspected you had an infection in your blood, blood cultures would be ordered. Read more

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Blood culture and how long till results?

Blood culture and how long till results?

2-3 days: Usually bacterial blood cultures take 2 days to grow and the results should be out by 3 days. If they are looking for fungus or viruses on the culture then it could take longer depending on th institution and if the test is being sent to another facility. Read more

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How long does it take to get blood culture results?

How long does it take to get blood culture results?

Depends: Routine blood cultures are usually read at 24 and 48 hours and then again at 7 days and 14 days depending upon the organisms that are growing. Newer "blood culture" results using a variety of methods including dna testing or radioactive metabolite detection can often be read much sooner- in hours. Read more

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What is the definition or description of: blood culture?

Blood cultures: Blood cultures refers to taking a sample of blood and growing in the microbiology laboratory for invasive organisms. Typically blood cultures are used for bacteria but can also be used to try and identify fungal organisms in the blood like yeast. Read more

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How long does it normally take to get blood culture results back?

1-5 days: It can be as soon as one day but labs will usually incubate and monitor the cultures for up to 5 days to make sure nothing is growing. Read more