Sodium Deficit in Hyponatremia

id

95

full_title

Sodium Deficit in Hyponatremia

short_title

Sodium Deficit in Hyponatremia

med_description

Calculates sodium quantity missing in hyponatremia.

description

The Sodium Deficit in Hyponatremia Calculates sodium quantity missing in hyponatremia.

keywords

Sodium Deficit in Hyponatremia, na deficit, na calc, na deficit calc, na deficit score, hyponatremia, hyponatremia calc, hyponatremia deficit, fluids hyponatremia

complaint

[ "AMS", "Seizure", "Weakness" ]

formula

Sodium deficit = total body water × (desired Na - pt's Na) For adults, total body water (TBW) is calculated using the Watson equation: Men: TBW, liters = 2.447 – 0.09516 × age, years + 0.1074 × height, cm + 0.3362 × weight, kg Women: TBW, liters = -2.097 + 0.1069 × height, cm + 0.2466 × weight, kg For children, TBW = 0.6 × weight, kg

evidence

measurements

[ { "name": "Weight", "unit": "wt", "error_min": "0.5", "error_max": "620", "warn_min": "0.5", "warn_max": "500", "conversion": "0.453592", "normal_max_si": "150", "normal_max_us": "330", "normal_min_si": "1", "normal_min_us": "2", "units_si": "kg", "units_us": "lbs" }, { "name": "Age", "unit": "age_adult", "error_min": "18", "error_max": "110", "warn_min": "18", "warn_max": "110", "conversion": "1", "normal_max_si": "0", "normal_max_us": "0", "normal_min_si": "0", "normal_min_us": "0", "units_si": "years", "units_us": "years" }, { "name": "Height", "unit": "ht", "error_min": "0", "error_max": "90", "warn_min": "5", "warn_max": "80", "conversion": "2.54", "normal_max_si": "213", "normal_max_us": "84", "normal_min_si": "152", "normal_min_us": "60", "units_si": "cm", "units_us": "in" }, { "name": "Sodium", "unit": "na", "error_min": "100", "error_max": "200", "warn_min": "0", "warn_max": "170", "conversion": "1", "normal_max_si": "145", "normal_max_us": "145", "normal_min_si": "136", "normal_min_us": "136", "units_si": "mmol/L", "units_us": "mEq/L" } ]

information

Remember not to correct too rapidly to avoid central pontine myelinolysis!

The hyponatremia correction rate calculator can be used to pick an appropriate fluid and volume as well.

refrences

{ "Clinical Practice Guidelines": [ { "href": "", "text": "" } ], "Manufacturer Website": [ { "href": "", "text": "" } ], "Original/Primary Reference": [ { "href": "https://www.ncbi.nlm.nih.gov/pubmed/10824078", "text": "Adrogué HJ, Madias NE. Hyponatremia. N Engl J Med 2000; 342:1581." } ], "Other References": [ { "href": "https://www.ncbi.nlm.nih.gov/pubmed/2750773", "text": "Oh MS, Uribarri J, Barrido D, et al. Danger of central pontine myelinolysis in hypotonic dehydration and recommendation for treatment. Am J Med Sci 1989; 298:41" }, { "href": "https://www.ncbi.nlm.nih.gov/pubmed/17913972", "text": "Mohmand HK, Issa D, Ahmad Z, et al. Hypertonic saline for hyponatremia: risk of inadvertent overcorrection. Clin J Am Soc Nephrol 2007; 2:1110." }, { "href": "https://www.ncbi.nlm.nih.gov/pubmed/6986753", "text": "Watson PE, Watson ID, Batt RD. Total body water volumes for adult males and females estimated from simple anthropometric measurements. Am J Clin Nutr. 1980;33(1):27-39." } ], "Outcomes": [ { "href": "", "text": "" } ], "Validation": [ { "href": "", "text": "" } ], "Validations": [] }

pearls

usecase

reasons

Estimates the total amount of sodium that needs to be replaced in hyponatremia patients.

next_advice

Correct hyponatremia carefully. Do not forget to correct the hyponatremia level in hyperglycemic patients with the Sodium Correction for Hyperglycemia calculator. Use with the Sodium Correction Rate in Hyponatremia calculator which estimates the rate to correct, as well as tonicity of the solution used. Typically hypertonic solutions are reserved for patients that are overly symptomatic, such as seizures and severe neurologic deficits.

next_actions

next_management

diseases

[ "Hyponatremia" ]

instructions

The hyponatremia correction rate calculator can be used to pick an appropriate fluid and volume as well.

published

2022-04-21T20:29:48.167Z

purpose

[ "Formula" ]

search_terms

[ "na" ]

seo

{ "keywords_en": "Sodium Deficit in Hyponatremia, na deficit, na calc, na deficit calc, na deficit score, hyponatremia, hyponatremia calc, hyponatremia deficit, fluids hyponatremia", "meta_description_en": "The Sodium Deficit in Hyponatremia Calculates sodium quantity missing in hyponatremia." }

specialty

[ "Critical Care", "Critical Care (Pediatric)", "Endocrinology", "Hospitalist Medicine", "Internal Medicine", "Nephrology" ]

departments

[ "Endocrine and Metabolic", "Renal" ]

tags

[]

version_number

1

versions

[]

related

[ { "calcId": 480, "short_title_en": "Sodium Correction Rate in Hyponatremia/Hypernatremia", "slug": "sodium-correction-rate-hyponatremia-hypernatremia" }, { "calcId": 50, "short_title_en": "Sodium Correction for Hyperglycemia", "slug": "sodium-correction-hyperglycemia" }, { "calcId": 113, "short_title_en": "Free Water Deficit in Hypernatremia", "slug": "free-water-deficit-hypernatremia" } ]

ismed

false

section

[ "whyUseViewed", "nextStepsViewed", "evidenceViewed" ]

cleaned_departments

[ "endocrine", "urology" ]

cleaned_use

[]

pub

true