Skip to content

Serum or plasma concentration of a specific protein or peptide (unspecified by LOINC slug)

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

This test measures the amount of a particular substance in your blood, either serum or plasma. It helps doctors assess certain health conditions or monitor treatments.

Quick summary

["This test helps diagnose or track conditions related to protein levels in your blood."]

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

Key facts at a glance

LOINC
105028-5
Short code
OXA232
Synonyms
blaOXA-232 Islt/Spm Ql
Category
chemistry
Sample
serum
Container
Sterile, leak-proof container for primary specimens (blood, urine, body fluids, tissue) or transport medium (Amies or Stuart's medium) for swabs. Pure bacterial isolate submitted on appropriate solid media (e.g., blood agar, MacConkey agar) or in broth culture is preferred for gene detection.
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
0–120 years
Method
molgen
CPT
87150
SNOMED
122446000
Specimen volume
Primary specimen: minimum 1-5 mL depending on source (blood, fluid) or appropriate swab with visible material. Pure culture isolate: sufficient growth to inoculate testing panel.
Stability
Primary specimen: deliver to laboratory within 2 hours of collection at room temperature or per specific specimen type requirements. Bacterial isolates on solid media: stable for up to 7 days at 2-8°C. Isolates in glycerol stock: stable for months at -70°C. DNA extracts: stable for extended periods at -20°C to -80°C.
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–72 hours
Order
routine

Why This Test Is Done

Your healthcare provider may order this test to check for abnormal protein levels that could indicate conditions like kidney disease, liver problems, infections, or certain cancers. It may also be used to monitor how well a treatment is working or to screen for genetic disorders.

What to Expect Before the Test

No special preparation is usually needed. You may have a small needle inserted into a vein (typically in your arm) to draw blood. If you’re fasting, follow your provider’s instructions. Avoid smoking or consuming alcohol for a few hours before the test if advised.

During the Test

The blood sample will be collected in a tube. The tube may be labeled as either serum (coagulated blood) or plasma (blood with an anticoagulant). The sample is then sent to a lab for analysis. The process typically takes a few minutes.

What the Results Mean

Results are compared to a reference range provided by your lab. High or low levels may signal underlying health issues, but interpretation depends on your overall health, symptoms, and medical history. Your provider will discuss the results with you.

Reference range

Negative for blaOXA-232 carbapenem resistance gene. Positive indicates the presence of the blaOXA-232 gene, conferring carbapenem resistance in the tested bacterial isolate. Results should always be interpreted in conjunction with bacterial identification and antimicrobial susceptibility testing.N/A

Specimen: serum

No special patient preparation required. Specimen collection should be performed prior to initiation of antimicrobial therapy whenever possible to maximize organism recovery and gene detection sensitivity.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

What does this test measure?
This test quantifies a specific protein or peptide in your blood, which can reflect metabolic, inflammatory, or structural processes. Elevated or low levels may point to conditions like protein-losing syndromes, endocrine disorders, or immune system dysfunction.
How often should I get this test?
Frequency depends on your medical condition, treatment plan, and provider’s recommendations. Some tests are routine (e.g., annual screenings), while others are triggered by symptoms or specific diagnoses.
Can I eat or drink before this test?
Follow your healthcare provider’s instructions. Some tests require fasting (no food or drink except water), while others do not. Avoid smoking or excessive alcohol for a few hours before collection if advised.
  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