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Nizatidine Quantitative Serum Concentration

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

This test measures the amount of nizatidine, a medication used to reduce stomach acid, in your blood serum. It helps monitor your response to treatment or check for potential side effects.

Quick summary

["This test helps doctors track nizatidine levels in your body."]

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

Key facts at a glance

LOINC
73239-6
Short code
Nizatidine ind plt IgG SerPl Ql FC
Synonyms
Nizatidine ind plt IgG SerPl Ql FC
Category
hematology
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
flow-cytometry
CPT
82784
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

Why Is This Test Done?

Your healthcare provider may order this test if you’re taking nizatidine for conditions like acid reflux, heartburn, or stomach ulcers. It may also be used to assess how well your body is processing the medication or if you’re experiencing unusual side effects.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample, usually drawn from a vein in your arm. The process is quick and typically painless. If you’re on nizatidine, let your doctor know before the test to ensure accurate results.

What the Results Mean

Results are compared to a general reference range for nizatidine concentration in blood. Abnormally high or low levels may indicate issues like poor medication absorption, liver problems, or interactions with other drugs.

Possible Side Effects or Considerations

While nizatidine is generally safe, very high levels could cause dizziness, nausea, or allergic reactions. Rarely, it may affect kidney or liver function. Always follow your doctor’s advice about timing your test relative to your medication dose.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test is primarily used to evaluate nizatidine exposure in patients who may be at risk for toxicity, poor compliance, or drug interactions. It supports clinical decision-making for dose adjustments or troubleshooting treatment efficacy.

Short name

Nizatidine Level

Frequently asked questions

Why might my nizatidine level be checked even if I’m not experiencing symptoms?
Your doctor may order this test to ensure you’re taking the correct dose, check for drug interactions, or monitor for rare side effects that aren’t always obvious.
What should I do if my nizatidine level is outside the expected range?
Contact your healthcare provider immediately. High levels might require dose adjustments or a switch to another medication, while very low levels could indicate the medication isn’t working as intended.
Can I eat or drink before this blood test?
You can eat and drink normally unless instructed otherwise. Blood tests like this are typically done on an empty stomach for accuracy, but your provider will confirm if fasting is needed.
  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