urea blood test low: hi has anyone ever... - British Liver Trust

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urea blood test low

Faye-red profile image
7 Replies

hi has anyone ever experienced this

my Liver tests were normal this time round alt being 28

however my urea said 2.0 and it said that the normal is between 2.5 and 7.0

thanks in advance x

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Faye-red profile image
Faye-red
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7 Replies
AyrshireK profile image
AyrshireK

What has the doctor said about your results?

Online I found this so it's possible your results were affected by other issues and all isn't as bad as sounded.

"Urea is a waste product that is produced by the breakdown of protein in the body. Urea is measured in blood or serum by the blood urea nitrogen (BUN) test. The normal range of BUN is 5 to 20 mg/dL (1.8 to 7.1 mmol/L). However, this range can vary depending on factors such as age, gender, protein intake, hydration, liver function, and kidney function."

Faye-red profile image
Faye-red in reply to AyrshireK

Hi

These were took at the hospital and they didn’t mention that one until I asked for a cou from the nurse at the drs clinic.

All they told me was that my lymphocytes were low at 0.7

Fibro2021 profile image
Fibro2021 in reply to Faye-red

If you don't mind me giving one clarification. Urea nitrogen (BUN) and urea are two different laboratory indicators, although they are related. They have different normative values ​​and, accordingly, their reference interval also differs.

Fibro2021 profile image
Fibro2021

Hello. If you have or suspect liver disease, a decrease in urea levels in the blood may be associated with increased ammonia levels since urea is a transport form of ammonia that is removed from the body. If ammonia is not detoxified in the liver, its level in the blood increases and at the same time the level of urea decreases. You may want to talk to your doctor about checking your blood ammonia levels further. Elevated ammonia levels lead to hepatic encephalopathy with a wide range of nonspecific symptoms. Early treatment of hyperammonemia offers the opportunity to improve quality of life and prevent progression of symptoms.

Faye-red profile image
Faye-red in reply to Fibro2021

Hi it doesn’t say bun on the urea one, it comes under my electrolyte profile.

It doesn’t look like there has been an ammonia one done.

The ones that are out of range are

Urea low

Lymphocytes low

APTT LOW

Clause fibrinogen high

CRP HIGH

Fibro2021 profile image
Fibro2021 in reply to Faye-red

I explained the general principle of reducing blood urea. An unhealthy liver synthesizes urea poorly, and in order to assess the level of ammonia, the patient only needs to measure it in the blood.

BritishLiverTrust6 profile image
BritishLiverTrust6ModeratorBritish Liver Trust

Test results vary according to both the individual’s whole health and the laboratory analysing the results and should always be interpreted by the user’s own health care professionals. We suggest talking this through with your own doctor or health care professional.

If you are in the UK and would find it useful to talk things over, our nurse-led helpline is open Monday to Friday from 9am to 3pm on 0800 652 7330 (excluding bank holidays)

Best wishes

British Liver Trust

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