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fluid imbalance; water imbalance
Physiology:
Water balance is regulated by:
1) thirst
2) antidiuretic hormone (ADH)
3) renal medullary concentration of water
Daily fluid requirements are generally:
1) 20-30 mL/kg/day
2) 1200-1800 mL/day
Etiology:
- critical disease [3]
- see hyponatremia & hypernatremia
Related
body water
hypernatremia
hyponatremia
Specific
hypervolemia (extracellular volume overload)
hypovolemia (extracellular volume depletion)
General
hemodynamic instability (compromise)
sign/symptom
References
- Mayo Internal Medicine Board Review, 1998-99, Prakash UBS (ed)
Lippincott-Raven, Philadelphia, 1998, pg 599
- Geriatrics Review Syllabus, American Geriatrics Society,
5th edition, 2002-2004
- Geriatric Review Syllabus, 8th edition (GRS8)
Durso SC and Sullivan GN (eds)
American Geriatrics Society, 2013
- Adler SM1, Verbalis JG.
Disorders of body water homeostasis in critical illness.
Endocrinol Metab Clin North Am. 2006 Dec;35(4):873-94
PMID: 17127152
- Cowen LE, Hodak SP, Verbalis JG.
Age-associated abnormalities of water homeostasis.
Endocrinol Metab Clin North Am. 2013 Jun;42(2):349-70
PMID: 23702406
- Hodak SP, Verbalis JG.
Abnormalities of water homeostasis in aging.
Endocrinol Metab Clin North Am. 2005 Dec;34(4):1031-46,
PMID: 16310637
- Monitoring modalities and assessment of fluid status: a
practice management guideline from the Eastern Association for
the Surgery of Trauma.
ngc-guideline: 51234