You are here: Home > Our services > A-Z of services > Laboratory Medicine > General Information > Information for Health Care Professionals > Advice for requesters - Clinical Biochemistry
General Information / Advice for requesters - Clinical Biochemistry
ALLERGY TESTING - How to diagnose allergy in adults in primary care - **New document June 2020**
B12 - see HAEMATINICS
BNP - Use of natriuretic peptides in the management of suspected heart failure
CALPROTECTIN
- The York faecal calprotectin care pathway for GPs
- Cut-offs for patients in secondary care
CORTISOL - Diagnosis of Cushings Syndrome **New document August 2020**
CREATINE KINASE - Causes of Elevated CK
CRP - See INFLAMMATORY MARKERS
CUSHINGS SYNDROME - See CORTISOL
DIABETES - see HBA1C
ESR - See INFLAMMATORY MARKERS
ESTRADIOL – See OESTRADIOL
FAECAL CALPROTECTIN - See CALPROTECTIN
FERRITIN (high) - Investigation of elevated ferritin **New document July 2020**
FERRITIN (low) See HAEMATINICS
FOLATE - See HAEMATINCS
FSH - Menopause investigation and laboratory testing
HAEMATINICS - Guidance for primary care on interpretation of haematinics (B12, folate and ferritin)
HBA1C (diagnosis of diabetes) – Guidance for when HbA1c is not suitable for diagnosis of diabetes
HBA1C (monitoring of diabetes) – Guidance for when HbA1c is not suitable for monitoring diabetes
HEART FAILURE - See BNP
HYPERKALAEMIA - See POTASSIUM
HYPONATRAEMIA - See SODIUM
HYPOMAGNESAEMIA - See MAGNESIUM
INFLAMMATORY MARKERS – Guidance for which test to use and when
LIVER BLOOD TESTS / LIVER DISEASE - Guidance for primary care on liver disease and liver blood tests
MAGNESIUM - Guidance for assessment and management of hypomagnesaemia in primary care
MENOPAUSE - See FSH
MYELOMA/MGUS - See PARAPROTEINS
OSMOLALITY (Urine) - Guidance for investigation of polyuria / polydipsia
OESTRADIOL – Interpreting serum oestradiol levels
PARAPROTEINS - Management of patients with paraprotein bands in primary care
PHOSPHATE - Renal Tubular Reabsorption of Phosphate
POTASSIUM -
- Investigating and management of hyperkalaemia in primary care (adults)
- Top tips for avoiding haemolysis
- Hyperkalaemia due to DELAYED CENTRIFUGATION
- To enquire about obtaining a centrifuge for your surgery, please contact Carl Burkinshaw, Biochemistry Operational Manager (York and Scarborough): 01723 342028, carl.burkinshaw@york.nhs.uk
POLYURIA- see OSMOLALITY (Urine)
PROLACTIN - Investigation of hyperprolactinaemia
PV - See INFLAMMATORY MARKERS
Renal Tubular Reabsorption of Phosphate - See PHOSPHATE
SODIUM - Investigation and management of hyponatraemia in primary care (adults)
THERAPEUTIC DRUGS - Sampling requirements for commonly requested therapeutic drugs *Updated Nov 2020*
THYROID FUNCTION TESTS - Guidance for requesting and interpreting thyroid function tests (TFTs) *Updated Feb 2021*
TROPONIN - Troponin testing in primary care
ZINC - A guide to requesting Zinc in primary care
2018 01: REPORTING PROBLEMS
Procedure for recording and reporting sample quality problems
2019 02: TEST INTERFERENCE
Biotin interference in Roche-manufactured immunoassays
2019 03: INSULIN LIKE GROWTH FACTOR (IGF-1)
2019 04: CKD-EPI
Use of the CKD-EPI equation (NICE guideline 182)
Urine Collection Procedure for 24 hour urine
Overnight Dexamethasone Suppression Test
Web Page 26 Last Updated: 04/02/2021
Advice for Requesters - Cervical Cytology
Advice for Requestors - Immunology
Advice for Requesters- Microbiology
Advice for requesters - Clinical Biochemistry
Transportation of Samples and Postage
High Risk/Danger of Infection Samples
Request form and specimen labelling