Skip to content

Phurstrip

Published: July 31, 2026Updated: August 16, 2026

A urine pH test measures how acidic or alkaline your urine is, which helps doctors evaluate your body's acid-base balance and kidney function.

Quick summary

{"The test measures urine acidity levels (pH 4.5-8 is considered normal)","Diet, medications, and health conditions can affect your urine pH","Results help diagnose kidney stones, infections, and metabolic disorders","The test is simple, non-invasive, and uses a test strip","Certain foods and medications may temporarily change your results"}

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

Key facts at a glance

LOINC
5803-2
Short code
Urine pH
Synonyms
pH Ur Strip
Category
chemistry
Sample
serum
Container
Urine container (clean catch or random urine collection container)
Units
not specified
Ref low
4.5
Ref high
8
Critical range
5 not specified – 9 not specified
Fasting
false
Population
adult
Sex
all
Age range
0–150 years
Method
test-strip
CPT
81001
SNOMED
271710005
Specimen volume
10-15 mL
Stability
Room temperature: 2-4 hours, Refrigerated (2-8°C): 24-48 hours. Do not freeze. Test within 2 hours of collection for optimal accuracy.
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
1–4 hours
Order
routine

What is this test?

A urine pH test measures the acidity or alkalinity (basic level) of your urine. The pH scale ranges from 1 to 14, with 7 being neutral. Urine with a pH below 7 is considered acidic, while urine with a pH above 7 is considered alkaline (basic). This test is performed using a special test strip (dipstick) that changes color based on the pH level of your urine sample.

How is the test performed?

For this test, you will need to provide a urine sample. You will be given a clean container to collect a mid-stream urine sample. The healthcare provider will then dip a chemical test strip into the urine sample. Within seconds, the strip will change color, indicating the pH level of your urine. This color is compared to a standardized chart to determine the exact pH value.

What do the results mean?

A normal urine pH typically ranges from 4.5 to 8, with the average being around 6.0 (slightly acidic). Your results may indicate: acidic urine (pH below 5.5), neutral urine (pH around 7), or alkaline urine (pH above 7.5). However, the 'normal' range can vary depending on your diet, medications, and overall health status. Your doctor will interpret your results in the context of your individual health situation.

How to prepare for the test

Before the test, inform your doctor about all medications, supplements, and vitamins you are taking, as these can affect your urine pH. Avoid making significant changes to your diet right before the test, as foods can influence results. Your doctor may ask you to fast or avoid certain foods before the test. It is best to collect your urine sample in the morning, unless otherwise directed by your healthcare provider.

Reference range

4.5-8.0not specified

Specimen: serum

No fasting or special preparation required. Midstream clean-catch specimen preferred.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Urine pH

Frequently asked questions

Is fasting required before a urine pH test?
Fasting is usually not required for a basic urine pH test. However, your doctor may provide specific instructions based on your situation. It is important to follow any pre-test instructions given by your healthcare provider.
Can my diet affect the test results?
Yes, your diet can significantly affect urine pH. Diets high in meat, cranberries, or prunes tend to make urine more acidic. Diets high in fruits, vegetables, or dairy products can make urine more alkaline. It is best to maintain your normal diet unless instructed otherwise by your doctor.
What medications can affect urine pH?
Several medications can affect urine pH, including diuretics (water pills), antacids, potassium citrate, ammonium chloride, and certain types of insulin. Always inform your doctor about all medications and supplements you are taking before the test.
Is the test painful?
No, the urine pH test is completely painless. It only requires providing a urine sample, which is a simple and non-invasive process.
How long does it take to get results?
Urine pH test results are typically available within a few minutes to an hour, as the test strip provides immediate results. Your doctor will discuss the results with you during your follow-up appointment.
  1. 1
    MedlinePlus - Urine pH TestSource
  2. 2
    Mayo Clinic - UrinalysisSource
  3. 3
    National Kidney Foundation - UrinalysisSource

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