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HIV Antiretroviral Therapy (ART) Missed Dose History (2-Day Recall)

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

This test helps track whether you’ve missed doses of your HIV medications in the past 2 days, which can affect your viral load and overall health.

Quick summary

["Missing doses may require adjustments to your treatment plan."]

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

Key facts at a glance

LOINC
45262-3
Short code
HIV ART Rx doses missed 2 days ago
Synonyms
HIV ART Rx doses missed 2 days ago
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
reported-actg
CPT
86701
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

This test does not directly measure your HIV virus count or medication levels in your blood. Instead, it relies on your self-reported history of missed doses over the last 2 days, as provided by your healthcare provider or pharmacy system. The result is a qualitative (yes/no) confirmation of missed doses, not a lab measurement.

Why It Matters for Your Health

Consistent adherence to ART is critical for controlling HIV. Missing doses can lead to viral resistance, reduced effectiveness of treatment, and potential health complications. This test helps your doctor assess whether adjustments to your regimen are needed.

How the Test Works

Your healthcare provider or pharmacy system records whether you missed doses of your HIV medications in the past 2 days. The test result is based on this documented information, not a blood or other specimen test.

What to Expect Before the Test

You won’t need to prepare for this test. It’s typically part of routine monitoring and doesn’t require fasting, special diet, or any sample collection. Your provider will review your medication history as part of your visit or follow-up.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

HIV Medication Adherence Check

Frequently asked questions

How often should I expect this test?
This test is usually performed as part of routine HIV care, often during follow-up visits or when you’re adjusting your treatment plan. Your provider will determine the frequency based on your individual needs, such as viral load stability or recent adherence history.
What if I missed doses but didn’t report it?
If you missed doses but didn’t report it to your provider, this test won’t capture that. Always communicate openly with your healthcare team about missed doses, even if they don’t appear on the test result. Your provider can help you address missed doses and adjust your plan accordingly.
Does this test affect my medication?
No, this test does not change your medication regimen. It’s used to inform your provider about missed doses so they can make decisions about your treatment, such as dose adjustments or additional support.
  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