Changes to Biochemistry Phone Limits

on Monday, 17 June 2019. Posted in Biochemistry, General

From Monday 17th June the Biochemistry phone limits at Heartlands/Good Hope and Solihull will change (see table below).  The new limits are already in place on the Queen Elizabeth site and so we will now be phoning the same results across all sites.   The new limits reflect changes to the Royal College of Pathologists guidance.

Analyte

Phone results below or equal to:

Phone results above or equal to:

Units

Notes

Sodium

120

150

mmol/L

 

Potassium

2.5

6.5

mmol/L

 

Urea

-

30

mmol/L

 

Creatinine

-

Paediatrics: >354

umol/L

Except those on renal wards or under renal consultants.

eGFR

Adults: <15

-

ml/min

AKI

-

2

 

Not CKD patients

Glucose

2.5

25

mmol/L

 

Calcium adjusted

1.8

3.5

mmol/L

 

Magnesium

0.4

-

mmol/L

 

Phosphate

0.3

-

mmol/L

 

AST

-

600

U/L

 

ALT

-

600

U/L

 

Total CK

-

5000

U/L

 

Amylase

-

500

U/L

 

Digoxin

-

2.5

ng/mL

 

Theophylline

-

25

mg/L

 

Phenytoin

-

25

mg/L

 

Lithium

-

>1.5

mmol/L

 

Troponin T

-

GP only: >14

ng/L

GP only

Ammonia

-

100

umol/L

 

Ethanol

-

Paediatrics only: any detectable

mg/L

Paediatrics only

Paracetamol

-

10

mg/L

Not ED patients

Salicylate

-

300

mg/L

Not ED patients

Conj bilirubin (DBIL)

-

Paediatrics only:

25

umol/L

Paediatrics only

Total bilirubin

-

Paediatrics only: 225

umol/L

Paediatrics only

Carbamazepine

-

25

ug /mL

 

Iron

-

ED only: 70

umol/L

ED only

Phenobarbitone

-

70

mg/L

 

CSF Gluc

-

5.0

mmol/L

 

CSF Prot

-

0.45

g/L

 

Lactate

-

2.3

   

CRP

-

300

   

Total bile acids

-

20

   

Methotrexate

Phone all

umol/L

 

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The laboratories at Heartlands Hospital, Good Hope Hospital and Solihull Hospital form part of the services provided by University Hospitals Birmingham and are UKAS (United Kingdom Accreditation Service) accredited to the ISO 15189:2012 standard. For a list of accredited tests and other information please visit the UKAS website using the following link: https://www.ukas.com/find-an-organisation/

  • Heartlands, Good Hope and Solihull Hospital pathology laboratories are a UKAS accredited medical laboratory No.8217
  • United Kingdom Health Security Agency laboratory is a UKAS accredited medical laboratory No.8213

Tests not appearing on the UKAS Schedule of Accreditation currently remain outside of our scope of accreditation. However, these tests have been validated to the same high standard as accredited tests and are performed by the same trained and competent staff.

For further test information, please visit the test database: http://www.heftpathology.com/frontpage/test-database.html.

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For further information contact Louise Fallon, Quality Manager, 0121 424 1235

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