Investigation of outpatients referred to a chemical pathologist with potential pseudohyperkalaemia

Journal of Clinical Pathology

Volumn 62, Issue 10, 2009, Pages 920-923

  Kapoor, A K ^a   Ravi, A ^a   Twomey, P J ^a  

^a IPSWICH HOSPITAL   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

BILIRUBIN; CREATININE; HEMOGLOBIN; LACTATE DEHYDROGENASE; POTASSIUM;

ADULT; AGED; ANEMIA; ARTICLE; BILIRUBIN BLOOD LEVEL; BLOOD ANALYSIS; BLOOD CELL COUNT; BLOOD CLOTTING; CENTRIFUGATION; CLINICAL ARTICLE; CLINICAL EVALUATION; CLINICAL PROTOCOL; CREATININE BLOOD LEVEL; FEMALE; GLOMERULUS FILTRATION RATE; HEMATOLOGIC DISEASE; HEMOGLOBIN BLOOD LEVEL; HUMAN; HYPERKALEMIA; LACTATE DEHYDROGENASE BLOOD LEVEL; LEUKOCYTE COUNT; MALE; OUTPATIENT; PATIENT REFERRAL; POTASSIUM BLOOD LEVEL; PRIORITY JOURNAL; PSEUDOHYPERKALEMIA; RETICULOCYTE COUNT; THROMBOCYTE COUNT;

ADULT; AGED; AGED, 80 AND OVER; ARTIFACTS; BLOOD CELL COUNT; BLOOD SPECIMEN COLLECTION; FALSE POSITIVE REACTIONS; FEMALE; HUMANS; HYPERKALEMIA; MALE; MIDDLE AGED; OUTPATIENT CLINICS, HOSPITAL; POTASSIUM; REFERRAL AND CONSULTATION;

EID: 70349673622     PISSN: 00219746     EISSN: 14724146     Source Type: Journal    
DOI: 10.1136/jcp.2008.062141     Document Type: Article

References (12)

1. Smellie WS. Spurious hyperkalaemia. BMJ 2007;334:693-695
2. Sinclair D, Briston P, Young R, et al. Seasonal pseudohyperkalaemia. J Clin Pathol 2003;56:385-387
3. Ismail A, Shingler W, Seneviratne J, et al. In vitro and in vivo haemolysis and potassium measurement. BMJ 2005;330:949.
4. Thurlow V, Ozevlat H, Jones SA, et al. Establishing a practical blood platelet threshold to avoid reporting spurious potassium results due to thrombocytosis. Ann Clin Biochem 2005;42:196-199 (Pubitemid 40694959)
5. Hartland AJ, Neary RH. Serum potassium is unreliable as an estimate of in vivo plasma potassium. Clin Chem 1999;45:1091-1092 (Pubitemid 29340550)
6. Lum G, Gambino SR. A comparison of serum versus heparinized plasma for routine chemical tests. Am J Clin Pathol 1974;61:108-113
7. Johnston JD, Hawthorne SW. How to minimise factitious hyperkalaemia in blood samples from general practice. BMJ 1997;314:1200.
8. Gourlay NJ, McArthur C. Minimising factitious hyperkalaemia. BMJ 1997;315:190.
9. Cornes MP, Ford C, Gama R. Spurious hyperkalaemia due to potassium-EDTA contamination: common and not always easy to identify. Ann Clin Biochem 2008;45:601-603
10. Twomey PJ, Kroll MH. How to use linear regression and correlation in quantitative method comparison studies. Int J Clin Pract 2008;62:529-538
11. Kirkwood BR, Sterne JAC. Essentials of medical statistics. Blackwell Science, 2003.
12. Simple Interactive Statistical Analysis. Fisher's exact test. http://www.quantitativeskills.com/sisa/statistics/fisher.htm (accessed 9 January 2009).