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Guided Chest Tube Output Protein Excretion (24-hour urine collection)

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

This test measures the total amount of protein found in your urine over 24 hours after a chest tube procedure. It helps assess whether your body is losing too much protein through your urine, which can indicate kidney function or fluid balance issues.

Quick summary

["Understanding protein loss after chest tube removal is key to preventing complications like swelling or electrolyte imbalances."]

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

Key facts at a glance

LOINC
87112-9
Short code
Guided Chest Tun CVC wo port exch
Synonyms
Guided Chest Tun CVC wo port exch
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
imaging-modality
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 This Test Is Done

Your healthcare provider may order this test if you’ve had a chest tube inserted to drain fluid or air from your chest cavity. After the tube is removed, they may check for protein in your urine to monitor for signs of kidney strain or fluid retention. This can help ensure proper healing and prevent complications like swelling in your legs or arms.

What to Expect Before the Test

You’ll need to collect all urine for a full 24-hour period after your chest tube is removed. Typically, you’ll start the collection right after the tube is taken out and continue until you’ve collected urine for the next full day. Your healthcare team will provide instructions on how to properly collect and store the urine samples to ensure accuracy.

What the Test Results Mean

Higher-than-normal protein levels in urine after a chest tube procedure might suggest your kidneys are working harder than usual or that fluid is improperly redistributing in your body. Your provider will discuss these results with you and may recommend further tests or adjustments to your care plan if needed.

Common Causes of Abnormal Results

Protein in urine after chest tube removal can occur due to normal healing processes, but elevated levels may also be linked to conditions like kidney strain, fluid overload, or improper fluid balance. Your provider will consider your overall health and symptoms when interpreting these results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

How often will I need to collect urine for this test?
You’ll typically collect urine for a full 24-hour period, starting right after your chest tube is removed. Follow your healthcare provider’s instructions carefully to ensure accurate results. Some patients may need to use a urine collection device or split their urine into containers if they’re unable to collect it all at once.
What if I miss a day of urine collection?
If you miss part of the 24-hour collection, your provider may ask you to restart the process or adjust the timing. It’s important to complete the full collection to get an accurate measurement of protein loss. Contact your healthcare team immediately if you’re unable to complete the collection as planned.
Will I feel any discomfort during urine collection?
No, urine collection itself doesn’t cause discomfort. However, you may need to urinate frequently during the 24-hour period to ensure all urine is collected. If you experience pain or unusual symptoms while collecting urine, let your provider know right away.
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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