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Doctor insights on: Blood Culture

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Dr. Janice Alexander
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. Janice Alexander
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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Managing Low Blood Sugar (Checklist)

Avoid skipping meals
Once
Eat protein-rich snacks every 2 hours
Daily
Keep fruit with you at all times if you feel hypoglycemic
Once
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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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Managing High Blood Pressure (Checklist)

Monitor your blood pressure at home
Daily
See your doctor regularly and work with him/her to control your blood pressure
Once
Take your medication as instructed without fail
Once
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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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Taking Blood Thinners (Checklist)

Take appropriate dose of anticoagulation medication
Once
Follow up with your treating physician
Once
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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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Diagnosing Blood in Stool (Checklist)

Get a heme test of stool
daily
Make dietary changes
3x day
Take a stool softener
3x day
See your doctor
once
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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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Dealing with Blood in Urine (Checklist)

Rule out infection as a cause with a urinalysis or culture
once
Ask your doctor to review your medications to identify cause
once
Rule out kidney stones with your doctor
once
If male, schedule a prostate exam
once
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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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Managing Low Blood Pressure (Checklist)

Drink plenty of water
once
Have your medications adjusted if needed
Once
Look for symptoms of lightheadedness and fatigue
Once
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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

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How do you get e-coli in a blood culture?

How do you get e-coli in a blood culture?

Multiple ways: A few organisms may show up in blood culture due to transient bacteremia in an otherwise normal person. This may be due passing hard stool. More commonly e coli cause infections in various sites, most commonly, urinary tract, and then invade the blood stream and cause septicemia/sepsis with meaningful growth in blood culture. ...Read more

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Would a blood culture be positive if I had meningitis?

Not always: It depends on how bad the meningitis is, but it helps narrow down the antibiotis if the blood cultures were positive. ...Read more

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What is gram positive rod negative in a blood culture test?

What is gram positive rod negative in a blood culture test?

See below: Gram positive rods are a class of bacteria. The majority of bacteria involved in disease are either gram positive or negative and come in rod, cocci (grapes), or spirals. If the culture says it is gpr negative, then that means no gram positive rods were found. However, it may say other forms were found, including gnr. ...Read more

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Is strep mitis always consider contaminant from blood culture?

Context!: In many cases, yes- but it depends on the situation. If one was to have a single positive blood culture set out of 2 or 3 sets, and the patient is feeling better without interventions, it may be because of a contamination. However, if someone with terrible teeth has a prosthetic device, clinical symptoms, and labs consistent with an infection, then it may actually be a real infection. ...Read more

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What can cause the presence of corynebacterium in a blood culture?

What can cause the presence of corynebacterium in a blood culture?

Can't keep them out: These little creatures live on the skin, and it's not possible to sterilize the venipuncture site perfectly. Usually they mean nothing. One pitfall -- anthrax bacilli mimic corynebacteria if the technician isn't paying VERY close attention. But you'd also be frightfully sick. Hoping the workup continues productive, and best wishes. ...Read more

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What do you suggest if my dr said "no blood culture for 13 year old." why is that?

Hard to say: The proper person to ask is your doctor. S/he is has more information available to decide the propriety od any test, including a blood culture. ...Read more

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How much bacteria do you need in a blood culture for it to be positive?

What kind more imp: Bacterial normally present on the skin sometimes contaminate blood drawn for culture and constitute a false positive. It is the type of organism cultured that is more important than how many. ...Read more

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Would a standard "blood culture" show if someone had tb? Or appear abnormal?

Would a standard "blood culture" show if someone had tb? Or appear abnormal?

No: TB will not grow unless placed on special culture medium and can seldom be isolated from blood. Bloodborne spread or miliary TB is usually associated with fever, abnormal chest xray and abnormal liver functions. Thanks for trusting HealthTap! ...Read more