: S Wave Amplitude (uncertain abbreviation; short label used)
: This entry refers to a measurement labeled "S wave amplitude," but the compressed abbreviation alone does not clearly identify the specimen, method, or standard analyte. It is best understood generically as an amplitude or waveform measurement reported in arbitrary units.
[": Because the abbreviation is ambiguous, this result should be interpreted only in the context of the specific ordering test and its reporting units."]
Key facts at a glance
- LOINC
- 10063-6
- Short code
- S' wave Amp L-III
- Synonyms
- S' wave Amp L-III
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ekg
- 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 Represents
: An amplitude describes the size or height of a measured signal, such as a waveform or electrical deflection. In laboratory reporting, "amplitude" is not a standard chemistry or hematology analyte, so the exact meaning depends on the orderable test and the instrument that produced the value.
: Specimen and Method
: The abbreviation does not reliably specify a specimen type or measurement method. Possible contexts include instrument-derived signal measurements rather than routine blood, urine, or fluid chemistry tests. Your ordering provider or laboratory can confirm the specimen and method used.
: How to Read the Result
: Amplitude results are typically reported in arbitrary or instrument-specific units. A single value generally has meaning only when compared with the laboratory's own criteria, previous results, or the reference information supplied with the report.
: Limits of This Information
: No numeric reference range is provided here because the analyte and method are not clearly defined. Rely on the reference interval printed on your lab report and discuss any interpretation questions with your healthcare provider.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
: Clinical significance cannot be stated reliably without knowing the exact test, specimen, and method behind this abbreviation. Amplitude-style measurements are used in specialized contexts such as signal analysis or device-based testing, where results are interpreted against instrument-specific criteria rather than general population ranges. If this result appears on your report, ask the laboratory which orderable test produced it and how the value should be interpreted.
Short name
: NONE
Frequently asked questions
: Is this a standard blood test?
: Why is there no reference range listed?
: What should I ask my provider?
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