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Serum Achromatic Modification Activity (Total) - Total Serum Achromatic Modification Activity

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

This test measures the overall activity of substances in your blood that can chemically alter other molecules, often linked to protein or enzyme modifications. It may be part of a broader evaluation for metabolic or biochemical conditions.

Quick summary

["This test helps assess how your blood chemistry interacts with proteins and other molecules over time."]

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

Key facts at a glance

LOINC
30192-9
Short code
AChR Mod Ab/AChR Total SFr Ser
Synonyms
AChR Mod Ab/AChR Total SFr Ser
Category
coagulation
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

Achromatic modification activity refers to biochemical processes where certain blood components undergo colorless (achromatic) chemical changes, such as oxidation, reduction, or enzymatic reactions. This test evaluates the cumulative effect of these processes in your serum sample, which can reflect underlying metabolic or functional states in your body.

Why It Might Be Ordered

Your healthcare provider may request this test if they suspect conditions affecting protein metabolism, enzyme function, or systemic biochemical balance. It could be part of investigations into chronic diseases, metabolic disorders, or conditions requiring detailed biochemical profiling.

Sample Preparation and Testing Process

A blood sample is drawn from a vein, typically in the arm, and sent to a lab. The serum portion (liquid after clotting) is analyzed to measure the total activity of achromatic modifications. This process often involves specialized biochemical assays to detect and quantify these reactions.

Clinical Significance

While this test is less commonly used than standard blood panels, elevated or altered levels of achromatic modification activity might indicate metabolic stress, enzyme deficiencies, or conditions affecting protein turnover. It can also serve as a marker for monitoring certain chronic conditions or responses to treatments.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Total Serum Achromatic Modification Activity

Frequently asked questions

What does a high or low result mean?
A high result may suggest increased biochemical activity, potentially linked to metabolic stress, inflammation, or certain enzyme dysfunctions. A low result could indicate reduced biochemical activity, which might be associated with metabolic suppression or specific enzyme deficiencies. Your results will be interpreted by your healthcare provider in the context of your overall health.
How often should I get this test?
The frequency of this test depends on your clinical needs. Your healthcare provider will determine if regular monitoring is necessary based on your diagnosis, symptoms, or treatment plan. Routine blood tests typically do not include this specific test unless directed otherwise.
Can I prepare for this test differently than a regular blood draw?
No special preparation is usually required for this test. Follow your healthcare provider’s instructions for fasting or avoiding certain medications if specified. As with any blood test, avoid strenuous activity 24 hours before the draw to ensure accurate results.
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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