|
|
| Line 1: |
Line 1: |
| #REDIRECT[[Anion Gap]] | | #REDIRECT[[Anion Gap]] |
|
| |
| ==Background==
| |
| *< 7 meq/L
| |
|
| |
| ==DDX==
| |
| *Lab error
| |
| *Decreased "unmeasured" anions
| |
| **hypoalbuminemia
| |
| *Increased "unmeasured" cations
| |
| **[[Hyperkalemia]]
| |
| **[[Hypercalcemia]]
| |
| **[[Hypermagnesemia]]
| |
| **[[Lithium Toxicity]]
| |
| *Increased cationic paraprotein
| |
| **Multiple myeloma
| |
| **Polyclonal IgG gammopathy
| |
| *Pseudo
| |
| **Severe [[Hypernatremia]] (>170 meq/L)
| |
| ***True conc of Na is underestimated
| |
| **Marked hyperlipidemia
| |
| ***Leads to overestimation of plasma Cl conc)
| |
| **Bromide intoxication (e.g. for myasthenia gravis and some herbal medications)
| |
| ***Machine mistakenly reads Br as Cl
| |
|
| |
| *AG falls by 2.5 meq/L for every 1 g/dL reduction in albumin concentration
| |
|
| |
| ==See Also==
| |
| [[Anion Gap (High)]]
| |
|
| |
| ==Source==
| |
| Kaji Questions
| |
|
| |
| [[Category:FEN]]
| |
| [[Category:Tox]]
| |
