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Salmonella species detection by culture and antimicrobial susceptibility testing (blood)

Published: August 9, 2026Updated: August 16, 2026

This test checks for the presence of *Salmonella* bacteria in your blood and determines how your body might respond to antibiotics.

Quick summary

["Detects blood infection by *Salmonella* and antibiotic resistance patterns."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
105768-6
Short code
Salmonella spp DNA Ct Bld +Qn NAA+prb
Synonyms
Salmonella spp DNA Ct Bld +Qn NAA+prb
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

The test includes two key parts: identifying *Salmonella* bacteria in your blood and assessing how your blood sample reacts to common antibiotics. This helps doctors confirm an infection and choose the best treatment.

Why It’s Ordered

Your doctor may order this test if you have symptoms like fever, chills, stomach pain, or unexplained fatigue—especially if you’ve recently traveled to areas with higher *Salmonella* risk or have a weakened immune system.

Sample Collection and Process

A blood sample is drawn from a vein, placed in a special container, and sent to a lab. The lab grows the bacteria in a controlled environment and tests antibiotic sensitivity to guide treatment decisions.

What to Expect Before the Test

No special preparation is needed, but inform your doctor about any recent illnesses, medications (especially antibiotics), or immune conditions that might affect results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Positive results confirm a *Salmonella* blood infection, which can cause severe illness requiring antibiotics. Antibiotic susceptibility testing helps prevent resistance by targeting the most effective drugs. Early detection improves outcomes, especially in high-risk patients.

Short name

Blood Salmonella screening

Frequently asked questions

How long does it take to get results?
Results typically take 3–10 days, depending on the lab’s processing time for culture growth and antibiotic testing.
What does a positive result mean?
A positive result means *Salmonella* bacteria were found in your blood, indicating an infection that may require medical treatment with antibiotics. Your doctor will discuss the next steps based on the specific strain and antibiotic sensitivity.
Can I take antibiotics before the test?
Yes, but inform your doctor immediately. Antibiotics before testing may alter results, so your doctor will adjust the test protocol or interpretation accordingly.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy