Abnormally colored urine: Difference between revisions
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==Background==
==Background==
Normally red or brown
The urine can help guide the toxicologic differential in a poisoned patient<ref>Aycock RD Kass DA. Abnormal urine color. South Med J. 2012 Jan;105(1):43-7</ref>


==DDx==
==Clinical Features==
#Hematuria
*Complaint of abnormally colored urine
#Myoglobinuria (see [[Rhabdo]])
 
#Hemoglobinuria
==Differential Diagnosis==
#Porphyria
{{Red urine DDX}}
#Bile pigments
 
#Food (red)
===Black===
##Beets
*Methyldopa
##Blackberries
*Betadine
##Rhubarb
*Melanoma
##Food coloring
*Cresol
##Fava beans
*Iiron
#Drugs
*Laxatives (cascara, senna)
##Red
*L-dopa
###Phenophthalein
*Methocarbamol
###Rifampin
*Metronidazole
###Doxorubicin
*Nitrofurantoin
###Deferoxamine
*Sorbitol
###Chloroquine
 
###Ibuprofen
===Orange===
###Methyldopa
*[[Pyridium]]
##Brown
*[[Rifampin]]
###Levodopa
*Vitamin A
###Metronidazole
*[[Vitamin B12]]
###Nitrofurantoin
*Carrots
###Iron sorbitol
*Beets
###Chloroquine
*Bile pigments
###Methyldopa
*[[Uric acid crystalluria]] (neonates)
 
===Purple===
*Phenolphthalein
*Purple Urine Bag Syndrome<ref>Barlow, G et al. "Purple urine bags". Lancet 1 (8062): 502.</ref><ref>Tan, C et al. "Purple urine bag syndrome". Canadian Medical Association Journal 179 (5): 491.</ref>
 
===Brown===
*Levodopa
*Metronidazole
*Nitrofurantoin
*Iron sorbitol
*Chloroquine
*Methyldopa
*Acetaminophen (overdose)
*Niridazole
*Fava beans
*Rhubarb
 
===Blue/Green===
*Amitryptiline
*Indomethicin
*[[Pseudomonas]]
*Methylene blue
*Clorets breath mints
*Cimetidine
*Flupirtine
*Methocarbamol
*Metoclopramide
*Promethazine
*[[Propofol]]
*Tetrahydronaphthalene
*Zaleplon
 
==Evaluation==
===Hematuria vs Myoglobinuria===
[[File:RhabdoUrine.jpg|thumb|Urine from a person with [[rhabdomyolysis]] showing the characteristic brown discoloration as a result of myoglobinuria]]
*[[Hematuria]]
**[[Urinalysis]] = +Blood with +RBCs
*[[Myoglobinuria]]
**[[Urinalysis]] = +Blood with -RBCs
 
==Management==
*Dependent on diagnosis
 
==Disposition==
*Dependent on diagnosis


==See Also==
==See Also==
[[Rhabdomyolysis]]
*[[Rhabdomyolysis]]
 
==External Links==
*[http://www.thepoisonreview.com/2012/01/05/what-color-is-your-urine Poison Review - What Color is Your Urine?]
 
==References==
<references/>


[[Category:GU]]
[[Category:Urology]]
[[Category:Toxicology]]

Latest revision as of 20:34, 24 January 2024

Background

The urine can help guide the toxicologic differential in a poisoned patient[1]

Clinical Features

  • Complaint of abnormally colored urine

Differential Diagnosis

Red Urine

Black

  • Methyldopa
  • Betadine
  • Melanoma
  • Cresol
  • Iiron
  • Laxatives (cascara, senna)
  • L-dopa
  • Methocarbamol
  • Metronidazole
  • Nitrofurantoin
  • Sorbitol

Orange

Purple

  • Phenolphthalein
  • Purple Urine Bag Syndrome[2][3]

Brown

  • Levodopa
  • Metronidazole
  • Nitrofurantoin
  • Iron sorbitol
  • Chloroquine
  • Methyldopa
  • Acetaminophen (overdose)
  • Niridazole
  • Fava beans
  • Rhubarb

Blue/Green

  • Amitryptiline
  • Indomethicin
  • Pseudomonas
  • Methylene blue
  • Clorets breath mints
  • Cimetidine
  • Flupirtine
  • Methocarbamol
  • Metoclopramide
  • Promethazine
  • Propofol
  • Tetrahydronaphthalene
  • Zaleplon

Evaluation

Hematuria vs Myoglobinuria

Urine from a person with rhabdomyolysis showing the characteristic brown discoloration as a result of myoglobinuria

Management

  • Dependent on diagnosis

Disposition

  • Dependent on diagnosis

See Also

External Links

References

  1. ↑ Aycock RD Kass DA. Abnormal urine color. South Med J. 2012 Jan;105(1):43-7
  2. ↑ Barlow, G et al. "Purple urine bags". Lancet 1 (8062): 502.
  3. ↑ Tan, C et al. "Purple urine bag syndrome". Canadian Medical Association Journal 179 (5): 491.
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