- 1 On being a patient
- 2 Modern medicine: foundations, achievements, and limitations
- 3 Global patterns of disease and medical practice
- 4 Cell biology
- 5 Immunological mechanisms
- 6 Principles of clinical oncology
- 7 Infection
- 8 Sexually transmitted diseases and sexual health
- 9 Chemical and physical injuries and environmental factors and disease
- 10 Clinical pharmacology
- 11 Nutrition
- 12 Metabolic disorders
- 13 Endocrine disorders
- 14 Medical disorders in pregnancy
- 15 Gastroenterological disorders
- 16 Cardiovascular disorders
- 17 Critical care medicine
- 18 Respiratory disorders
- 19 Rheumatological disorders
- 20 Disorders of the skeleton
- 21 Disorders of the kidney and urinary tract
- 21.1 Structure and function of the kidney
- 21.2 Electrolyte disorders
- 21.2.1 Disorders of water and sodium homeostasis
- 21.2.2 Disorders of potassium homeostasis
- 21.3 Clinical presentation of renal disease
- 21.4 Clinical investigation of renal disease
- 21.5 Acute kidney injury
- 21.6 Chronic kidney disease
- 21.7 Renal replacement therapy
- 21.8 Glomerular diseases
- 21.9 Tubulointerstitial diseases
- 21.10 The kidney in systemic disease
- 21.11 Renal diseases in the tropics
- 21.12 Renal involvement in genetic disease
- 21.13 Urinary tract infection
- 21.14 Disorders of renal calcium handling, urinary stones, and nephrocalcinosis
- 21.15 The renal tubular acidoses
- 21.16 Disorders of tubular electrolyte handling
- 21.17 Urinary tract obstruction
- 21.18 Malignant diseases of the urinary tract
- 21.19 Drugs and the kidney
- 22 Disorders of the blood
- 23 Disorders of the skin
- 24 Neurological disorders
- 25 The eye
- 26 Psychiatry and drug related problems
- 27 Forensic medicine
- 28 Sports medicine
- 29 Geratology
- 30 Pain
- 31 Palliative medicine
- 32 Biochemistry in medicine
- 33 Acute medicine
Disorders of potassium homeostasis
- Chapter:
- Disorders of potassium homeostasis
- Author(s):
J Firth
- DOI:
- 10.1093/med/9780199204854.003.210202_update_001
Update:
Hypokalaemia—enhanced discussion of (1) association with hypomagnesaemia and treatment in this circumstance; (2) investigative approach, with use of the urinary potassium to creatinine ratio or calculation of the transtubular potassium concentration gradient (TTKG) to differentiate renal and non-renal causes; (3) channelopathies as the basis for at least some cases of thyrotoxic periodic paralysis.
Hyperkalaemia—only minor changes to this section of the chapter required and made.
The normal range of potassium concentration in serum is 3.5 to 5.0 mmol/litre and within cells it is 150 to 160 mmol/litre, the ratio of intracellular to extracellular potassium concentration being a critical determinant of cellular resting membrane potential and thereby of the function of excitable tissues....
Access to the complete content on Oxford Medicine Online requires a subscription or purchase. Public users are able to search the site and view the abstracts for each book and chapter without a subscription.
Please subscribe or login to access full text content.
If you have purchased a print title that contains an access token, please see the token for information about how to register your code.
For questions on access or troubleshooting, please check our FAQs, and if you can't find the answer there, please contact us.
- 1 On being a patient
- 2 Modern medicine: foundations, achievements, and limitations
- 3 Global patterns of disease and medical practice
- 4 Cell biology
- 5 Immunological mechanisms
- 6 Principles of clinical oncology
- 7 Infection
- 8 Sexually transmitted diseases and sexual health
- 9 Chemical and physical injuries and environmental factors and disease
- 10 Clinical pharmacology
- 11 Nutrition
- 12 Metabolic disorders
- 13 Endocrine disorders
- 14 Medical disorders in pregnancy
- 15 Gastroenterological disorders
- 16 Cardiovascular disorders
- 17 Critical care medicine
- 18 Respiratory disorders
- 19 Rheumatological disorders
- 20 Disorders of the skeleton
- 21 Disorders of the kidney and urinary tract
- 21.1 Structure and function of the kidney
- 21.2 Electrolyte disorders
- 21.2.1 Disorders of water and sodium homeostasis
- 21.2.2 Disorders of potassium homeostasis
- 21.3 Clinical presentation of renal disease
- 21.4 Clinical investigation of renal disease
- 21.5 Acute kidney injury
- 21.6 Chronic kidney disease
- 21.7 Renal replacement therapy
- 21.8 Glomerular diseases
- 21.9 Tubulointerstitial diseases
- 21.10 The kidney in systemic disease
- 21.11 Renal diseases in the tropics
- 21.12 Renal involvement in genetic disease
- 21.13 Urinary tract infection
- 21.14 Disorders of renal calcium handling, urinary stones, and nephrocalcinosis
- 21.15 The renal tubular acidoses
- 21.16 Disorders of tubular electrolyte handling
- 21.17 Urinary tract obstruction
- 21.18 Malignant diseases of the urinary tract
- 21.19 Drugs and the kidney
- 22 Disorders of the blood
- 23 Disorders of the skin
- 24 Neurological disorders
- 25 The eye
- 26 Psychiatry and drug related problems
- 27 Forensic medicine
- 28 Sports medicine
- 29 Geratology
- 30 Pain
- 31 Palliative medicine
- 32 Biochemistry in medicine
- 33 Acute medicine