139 results
Ammonium Urate Crystals on Urine Microscopy
Very much like a black sea urchin in these particular examples

Dr.
Ammonium Urate Crystals ... on Urine Microscopy ... @JoseTesser #Ammonium ... clinical #nephrology #urine
Normal Anion-Gap Acidosis (NAGMA) - Differential Diagnosis Framework and Workup

NAGMA
- Chem, ABG or VBG
- Calculate Anion
Framework and Workup ... Gap - UAG and Urine ... gap - UA with urine ... ammonium concentration ... Differential #Diagnosis #Workup
Urine Osmolar Gap Calculation

Urine Osmolar Gap represents ammonium salts = Measured Urine Osmolality - (2 x
Urine Osmolar Gap ... Calculation Urine ... Gap represents ammonium ... salts = Measured Urine ... + Urea/2.8) Urine
Types of Renal Calculi

Calcium oxalate
 - Interstitial apatite plaque, Low urine volume, Increased urinary calcium excretion,
apatite plaque, Low urine ... duct plaque, Low urine ... - Magnesium, ammonium ... Infection with ammonia-producing ... - Antiviral treatment
Urine Anion Gap in NAGMA
NA + K - Cl = surrogate for Urine NH4+
NH4+ is excreted
Urine Anion Gap ... surrogate for Urine ... negative AG implies ↑ ammonium ... ThePeanutKidney #Urine
Distal Renal Tubular Acidosis (RTA)  Type 1 

Totally scuppers the kidney's acidification mechanism. Will be
diagnosis with direct urine ... ammonium assay. ... Failure to acidify urine
Urine Microscopy Crystals
Uric Acid crystals:
 - Formation promoted by acidic urine
 - Seen in tumor lysis
Urine Microscopy ... promoted by acidic urine ... promoted by alkaline urine ... disease Magnesium ammonium ... independent of urine
Laboratory Testing in Hemolytic Anemia

Intravascular vs Extravascular Hemolysis
Reticulocytes
Unconjugated bilirubin
LDH
Peripheral smear
Haptoglobin
Urine hemosiderin
Urine hemoglobin
Carboxyhemoglobin

#Hemolytic #Anemia #Laboratory #Testing #workup
Haptoglobin Urine ... hemosiderin Urine ... Laboratory #Testing #workup
Toluene Poisoning - Diagnosis and Management Summary
What is it?  Volatile hydrocarbon, Glue or paint-sniffing, Occupational
nephrocalcinosis) • Urine ... ammonium may be ... ↑ or ↓ Treatment ... Diagnosis #Management #Treatment
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
Hematuria Workup ... Symptoms of UTI, urine ... WBCs, or urine ... → Urine culture ... Diagnosis #Algorithm #Workup