Table 2

Haematological and biochemical monitoring of patient having HPN and considered clinically stable

3–4 monthly6 monthlyAnnually
Blood countx
Prothrombin time (INR) x
Renal function*
(Na, K, Cl, HCO3, urea, creatinine)
Liver function
(Alk P, GGT, ALT, AST, Bil, T prot, albumin)
Bone chemistry (Mg, Ca, P)x
Cholesterol and triglyceridex
Vitamins (A, D, E, B12, folate)†x
Trace elements (Zn, Cu, Se, Mn)x
Urinary Na*x
24 hours urine oxalate (J-C patients only)x
Thyroid function tests, TSHx
  • These are suggested time intervals for stable patients. If the results are abnormal or the clinical situation changes they may be done more frequently.

  • Chromium and vitamin C/other B vitamins are not routinely measured in the UK.

  • *HCO3, chloride and urinary Na if stable may be done annually.

  • †Vitamins A and E may be measured annually unless results are abnormal.

  • ALT, alanine aminotransferase; AST, aspartate aminotransferase; CRP, C reactive protein; GGT, gamma-glutamyltransferase; HPN, home parenteral nutrition; TIBC, total iron binding capacity; TSH, thyroid stimulating hormone.