Cystic fibrosis diagnostic study of choice: Difference between revisions
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{{CMG}}; {{AE}} {{SHH}} | {{CMG}}; {{AE}} {{SHH}} | ||
== Overview == | == Overview == | ||
The sweat chloride test is the gold standard test for the diagnosis of cystic fibrosis. | The sweat chloride test is the gold standard test for the diagnosis of cystic fibrosis. A sweat chloride value of more than 59 mmol/L is diagnostic for cystic fibrosis, 30-59 mmol/L needs more evaluation with CFTR genetic analysis and less than 30 is unlikely cystic fibrosis. | ||
== Diagnostic Study of Choice == | == Diagnostic Study of Choice == | ||
Revision as of 17:07, 23 February 2018
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Shaghayegh Habibi, M.D.[2]
Overview
The sweat chloride test is the gold standard test for the diagnosis of cystic fibrosis. A sweat chloride value of more than 59 mmol/L is diagnostic for cystic fibrosis, 30-59 mmol/L needs more evaluation with CFTR genetic analysis and less than 30 is unlikely cystic fibrosis.
Diagnostic Study of Choice
Study of choice:
- The sweat chloride test is the gold standard test for the diagnosis of cystic fibrosis.[1]
- The sweat chloride test should be performed when:[2]
- Positive newborn screening
- Signs and/or symptoms of cystic fibrosis
- Positive family history
Diagnostic results:
The results of sweat chloride test are considered as follow:[3]
| Sweat chloride test | |||||||||||||||||||||||||||||||||||||
| ≥60 mmol/L | 30-59 mmol/L | ≤29 mmol/L | |||||||||||||||||||||||||||||||||||
| CFTR genetic analysis | |||||||||||||||||||||||||||||||||||||
| 2 CF-causing CFTR mutation | No CFTR mutations | ||||||||||||||||||||||||||||||||||||
| EF diagnosis | CF unlikely | ||||||||||||||||||||||||||||||||||||
References
- ↑ Servidoni MF, Gomez C, Marson F, Toro A, Ribeiro M, Ribeiro JD, Ribeiro AF (2017). "Sweat test and cystic fibrosis: overview of test performance at public and private centers in the state of São Paulo, Brazil". J Bras Pneumol. 43 (2): 121–128. doi:10.1590/S1806-37562016000000076. PMC 5474375. PMID 28538779. Vancouver style error: initials (help)
- ↑ Farrell PM, White TB, Ren CL, Hempstead SE, Accurso F, Derichs N, Howenstine M, McColley SA, Rock M, Rosenfeld M, Sermet-Gaudelus I, Southern KW, Marshall BC, Sosnay PR (February 2017). "Diagnosis of Cystic Fibrosis: Consensus Guidelines from the Cystic Fibrosis Foundation". J. Pediatr. 181S: S4–S15.e1. doi:10.1016/j.jpeds.2016.09.064. PMID 28129811.
- ↑ Farrell PM, White TB, Ren CL, Hempstead SE, Accurso F, Derichs N, Howenstine M, McColley SA, Rock M, Rosenfeld M, Sermet-Gaudelus I, Southern KW, Marshall BC, Sosnay PR (February 2017). "Diagnosis of Cystic Fibrosis: Consensus Guidelines from the Cystic Fibrosis Foundation". J. Pediatr. 181S: S4–S15.e1. doi:10.1016/j.jpeds.2016.09.064. PMID 28129811.