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Insulin, Ultralente — Dose

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

Records the prescribed or administered amount of ultralente insulin, a long-acting insulin used to help control blood glucose.

Quick summary

["This entry shows the ultralente insulin dose, not a blood insulin or glucose measurement."]

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

Key facts at a glance

LOINC
4289-5
Short code
Insulin Ultralente Dose
Synonyms
Insulin Ultralente Dose
Category
hormone
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
2.6
Ref high
24.9
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
83525
SNOMED
413618004
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 is this test?

This entry records the amount of ultralente insulin that was prescribed or administered. Ultralente insulin is a long-acting form of insulin that helps keep blood glucose elevated for a longer period. The result is a medication dose and does not directly measure insulin or glucose in the blood.

Why might I need this test?

Your clinician may review this dose when adjusting insulin therapy, reconciling medications, or checking that the amount recorded matches your treatment plan. It may also help identify discrepancies between prescribed and administered doses.

How is the test performed?

No special laboratory procedure is generally needed. The dose is usually obtained from an insulin order, prescription, medication administration record, or medication-related health report.

How do I prepare for the test?

No fasting or other special preparation is required. Bring an up-to-date list of your insulin products and doses, and do not change your insulin dose unless your clinician instructs you to do so.

Reference range

Fasting: 2.6-24.9 μIU/mLN/A

Specimen: serum

No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Ultralente insulin dose

Frequently asked questions

Is this a blood insulin test?
No. It reports the prescribed or administered dose of ultralente insulin rather than the concentration of insulin in your blood.
What is ultralente insulin?
It is a long-acting insulin that helps control blood glucose over an extended period. It may be used alone or as part of a basal-bolus insulin plan.
What should I do if the recorded dose looks wrong?
Confirm the dose with your pharmacist or prescribing clinician before changing it. Contact a clinician promptly if you suspect an insulin dosing error or are experiencing symptoms of low blood glucose.
  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