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

A 45-year-old member asked:
Dr. Ankush Bansal
16 years experience Internal Medicine
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.
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A 33-year-old member asked:
Dr. Richard Mcgee
49 years experience Hematology and Oncology
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 ... Read More
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A 76-year-old male asked:
Dr. Deborah Josefson
27 years experience Internal Medicine
Spinal tap: CSF is cerebrospinal fluid which is obtained through a lumbar puncture or spinal tap. It would be sent for culture to check for bacterial vs. viral or ... Read More
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Dr. Marc Serota
13 years experience Dermatology
Similar to blood: A CSF culture is when you take a sample of CSF (usually from a lumbar puncture which samples the CSF from the spinal canal in the lower back - so yes ... Read More
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A 51-year-old female asked:
Dr. Craig MacArthur
33 years experience Pediatric Hematology and Oncology
2 days: With current photometric monitoring of blood cultures, most real positive cultures are identified by 24 hours of incubation, and virtually all by 48 h ... Read More
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A 85-year-old male asked:
Dr. John Munshower
29 years experience Family Medicine
Not really: Most "Cultures" will take at least 48-72 hours as the lab needs to let the bacteria "grow out over time, and see what occurs". Some will add sensitiv ... Read More
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A 36-year-old member asked:
Dr. Simon Tsiouris
22 years experience Infectious Disease
It can: Most labs will hold and incubate blood cultures for a full week. Results can come back in a little as a day or two or can take a week.
A 33-year-old member asked:
Dr. Feras Abdul khalek
13 years experience Hematology and Oncology
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 ... Read More
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A 41-year-old female asked:
Dr. Hunter Handsfield
52 years experience Infectious Disease
Under 12h, obviously: Obviously it can show up in under 12 hours; they wouldn't have called you back if the test were not definitely positive. The fast result could su ... Read More
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A 43-year-old member asked:
Dr. Adam King
Dr. Adam King answered
14 years experience Internal Medicine and Pediatrics
24-48 hours: When blood cultures are taken, they are put into a machine that looks for bacteria growing. Most hospitals have machines that constantly are looking ... Read More
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A 45-year-old member asked:
Dr. Gurmukh Singh
48 years experience Pathology
Depends: It depends on the type of organism, how many organisms were present in the blood at the time blood was drawn and if you were administered antibiotics ... Read More
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