PACT: Non protein nitrogen Flashcards
1
Q
What is the direct method for measuring urea in which a yellow coloured compound is measured at 540nm?
A
Diacetyl monoxime
2
Q
What is the first step for most indirect methods for the measurement of urea?
A
conversion of urea to ammonia by urease
3
Q
What reagent is associated with safety warning regarding the potential for explosion when dry?
A
picric acid
4
Q
what test is related to impaired glomerular filtration?
A
creatinine clearance
5
Q
What anticoagulant should not be used for enzyme based methods like uricase methods?
A
Sodium fluoride
6
Q
What type of crystals in synovial fluid are associated with gout?
A
monosodium urate
7
Q
Which technique is used to identify birefringent crystals in synovial fluid?
A
polarizing microscopy
