Gram Stain Blood Culture with Probe-Based Detection for Pathogen Identification
This test checks for bacteria in your blood using a special probe to identify potential infections. It involves drawing blood and testing it in a culture to detect signs of bacterial growth.
["This test helps diagnose bloodstream infections quickly by detecting bacteria early."]
Key facts at a glance
- LOINC
- 88262-1
- Short code
- GP Bld Culture Pnl Bld Pos Probe
- Synonyms
- GP Bld Culture Pnl Bld Pos Probe
- 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
- 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
How the Test Works
A small sample of your blood is collected and placed in a special container. The probe detects specific bacterial markers, and the sample is then cultured to see if bacteria grow. This helps identify the type of bacteria, if any, present in your bloodstream.
What to Expect Before the Test
You may need to avoid certain medications (like antibiotics) before this test, depending on your doctor’s instructions. Tell your healthcare provider about any recent illnesses or medications you’re taking to ensure accurate results.
Common Uses of This Test
This test is primarily used to diagnose bloodstream infections, such as sepsis, which can be life-threatening. It helps doctors determine the cause of fever, infection, or other symptoms linked to bacterial presence in the blood.
What Happens During the Test?
After your blood is drawn, it is processed in a lab where the probe detects bacterial DNA or markers. The sample is then incubated to allow bacterial growth. Results may take several days, depending on the lab’s findings.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
If bacteria are detected, this test helps guide appropriate antibiotic treatment. Early identification of blood infections can improve recovery outcomes and reduce complications. False negatives or positives can occur, so follow-up testing may be needed.
Short name
Blood Culture Gram Stain Probe Test
Frequently asked questions
How long does it take to get results from this test?
Can I eat or drink before this test?
You may feel a slight pinch or discomfort during the blood draw, but it usually doesn’t last long. Most people experience minimal pain afterward. If you’re anxious, let your healthcare provider know so they can take steps to make the process more comfortable.
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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