Physical Exam Flashcards
(141 cards)
Physical properties of urine
Color
Clarity
Specific gracity
Normal color of urine
Yellow
color of urine is due to (3)
Urochrome
Urobilin
Uroeythrin
chemical primarily responsible for the yellow color of urine
Urochrome
Urine clarity
Clear
Hazy
Cloudy
Turbid
Milky
Urine clarity
No visible particulates
Clear
Urine clarity
Transparent
Clear
Urine clarity
Few particulates
Hazy
Urine clarity
Few particulates, print easily seen through urine
Hazy
Urine clarity
Many particulates
Cloudy
Urine clarity
Print blurred
Cloudy
Urine clarity
Print cannot be seen
Turbid
Urine clarity
Precipitation is present
Milky
How can you say that the urine is milky
Presence of precipitation or clot
Ways in measuring specific gravity
- refractometer
- urinometer
- harmonic oscillation densitometry
- reagent strip
Refractometer measures
Refractive index
What does refractometer particularly determines
Concentration of dissolved particles
Determines concentration of dissolved particles by measuring refractive index
Refractometer
T/F In refractometer, temperature correction is necessary
False
Refractometer requires correction for
Glucose and protein
Principle of refractometer
Refractive index
Principle: Changes in colligative properties by particle number
Osmolality
Principle: pKa changes of a polyelectrolyte by ions present
Reagent strip
Calibrator for refractometer
Potassium sulfate
Distilled water
5% NaCl
9% sucrose