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Staphylococcus aureus Blood Culture Qualitative (Sensitivity Probe)

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

This test checks for the presence of *Staphylococcus aureus* bacteria in your blood using a specialized probe to enhance detection sensitivity.

Quick summary

["A positive result may indicate a serious blood infection requiring urgent medical attention."]

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

Key facts at a glance

LOINC
88272-0
Short code
Staph sp tuf Bld Pos Ql Probe
Synonyms
Staph sp tuf Bld Pos Ql Probe
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Ref low
0.8
Ref high
1.2
Critical range
— – 5 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe
CPT
85610
SNOMED
396252006
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

Why This Test Is Done

Your healthcare provider may order this test if you have symptoms like fever, chills, or unexplained infections, especially if you’ve had recent surgery, a weakened immune system, or a device like a central line. It helps confirm whether *Staphylococcus aureus*—a common cause of bloodstream infections—is present.

How the Test Works

The probe enhances the test’s ability to detect even small amounts of *Staphylococcus aureus* bacteria in your blood. Unlike standard blood cultures, this method may identify infections sooner, allowing for quicker treatment.

Sample Collection

Blood is drawn from a vein, usually in your arm. The sample is then processed in a lab to detect bacterial presence using the specialized probe technique.

What to Expect After the Test

Results are typically ready within 24–48 hours. If positive, you’ll likely need antibiotics tailored to *Staphylococcus aureus*. Follow-up tests or treatments may be recommended based on your provider’s guidance.

Reference range

INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A

Specimen: whole-blood

Inform your healthcare provider if you are taking blood thinners. No special preparation required.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

A positive result confirms *Staphylococcus aureus* blood infection, which can cause severe illness, organ damage, or even death if untreated. Early identification helps prevent complications and guides appropriate antibiotic therapy. A negative result means no detectable bacteria at the time of testing, but infections can still occur—further evaluation may be needed.

Short name

Staph Blood Culture Probe

Frequently asked questions

What does a positive result mean?
A positive result suggests *Staphylococcus aureus* is present in your blood, which may indicate a serious infection. Your doctor will work with you to determine the best treatment, often starting with antibiotics.
How soon will I get my results?
Results are usually available within 24–48 hours, but timing depends on lab processing. Your provider will contact you once results are ready.
Can I take antibiotics before the test?
No, taking antibiotics before this test may affect results. If you’ve recently used antibiotics, inform your provider before testing to avoid interference.
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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