Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Urinalysis Spring > Physical Properties of Urine > Flashcards

Physical Properties of Urine Flashcards

1
Q

Physical exam consists of

A

Color
Clarity
Spec. Gravity

(Color ranges from colorless to black)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Color of urine can result from”

A

Normal met function, physical activity, ingestion of materials, pathologies, bacteria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Describe normal urine Color
Urochrome
l
e
c
dark
depends

A

yellowish
lipid sol pigment
endogenous met.
constant rate

Darkens upon light exposure
depends on met. state

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Describe euroerythrin
attaches to
precipitates
am

A

pink color, attaches to urates, precipitate at fridge temps
amorphous urates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Describe Urobilin

A

oxidation of urobiligen, orange brown color

(urobiligen is norm and colorless)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Describe the overview of abn colors
Dark yellow/amber
what organ damage?

A

may be normal from presence of bilirubin or bile duct/liver damage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

T/F bilirubin has yellow foam when shaken

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what color do proteins in the urine make when shaken

A

White foam when shaken

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Yellow-orange color results from

A

large amounts of urobiligen being converted to urobilin (photo oxidation)
YELLOW FOAM DOESNT APPEAR WHEN SHAKEN

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Describe Phyridium (Azo)

A

may cause yellow/amber color
UTI medication
will interfere with dipstick
YELLOW FOAM (mistaken for bili)
ICTOTEST

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Yellow green

A

may occur from photo oxidation product of bilirubin - biliverdin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Pink/red/brown

A

red = blood (can be clear)
brown color appears due to oxidation of Hgb to Methgb (acid urine)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

RED

A

hgb/myoglobulin
RBC - cloudy
Red clear - hgb/myoglobulin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Describe myoglobulin

A

breakdown of skeletal muscles (rapidly cleared by kidney)
plasma clear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Describe Hgb

A

breakdown of rbcs
red plasma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Port red wine

A

oxidation of porphobiligen to porphyrins

17
Q

Non pathogenic causes of red urine

A

Beets
menstration
medications

18
Q

Brown/Black

A

melanin: oxidation of melanogen (colorless) produced in excess w malign melanoma

Homogentisic acid: met. of phenyaline
inborn error of met
alkaptonuria

19
Q

Blue/Green- purple

A

green - bacterial infect pseudomonas UTI

blue/Indican: interst tract
tryptophan - indole - indican
color interference

Purple: klebsiella prov. spp only catheterized

20
Q

Blue/Green normal causes
phenol

A

mints
intrav. medications (phenol)

21
Q

Pyridium vs bilirubin

A

P: clear plasma
yellow foam
drug

B: yellow foam
+ ICTOTEST
Liver

22
Q

Clear
Hazy/sl cloud
Cloudy
Turbid
Milky

A

C: no part, transparent
H: few part, print seen
C: many part, print blurred
T: print not seen
M: may precipitate - clot

23
Q

What causes milky urine

A

radioactive dye, chylaurea

24
Q

Ex of non pathogenic turbid

Path turbid

A

non: squamous epithelial
mucus
crystals
talc powder

Path:
rbc/wbc/bact
yeast
non-sq epith

25
Q

Describe specific gravity

A

measure of density of dissolve dchem in urine
first renal funct impared is reabsorbtion
INFLUENCED BY # PARTICLES AND SIZE

26
Q

Describe the refractometer
determin
velocity
dissolved
more conc =

A

determ conc of dissolved part. in specimen
velocity of light in air vs solution
dissolved particles will change angle

more conc = inc angle

27
Q

Describe the Urinometer
s.g
weighted
large

A

spec grav at temp 20deg
weighted float, bouyancy, meniscus =1
large vol of urine

28
Q

Reagent strips
pH >6.5
ONLY
Large
No p

A

screening test determined on .005 interval
spec w pH >6.5 have dec readings due to bromy blue

ONLY IONIC SOLUTES
LARGE ORGANIC MOL (GLUC/UREA) NOT MEASURED, NO PLASMA/RADIOGRAPH

29
Q

Isothenuric urine

A

S g 1.010

30
Q

Hypothenuric S G

Hypothenuris S G

A

<1.010

> 1.010

31
Q

T/F Specimens <1.002 question integ of sample

A

t

32
Q

Random urine spec RR

A

1.002 - 1.035

33
Q

Avg random Spec RR

A

1.015 - 1.025

34
Q

T/F abn high results >1.035 possible intrav injection

A

true

35
Q

Reagent strip method or Osmometer will not be affected bu these two subst

A

Radiograph contrast media
high MW plasma expander

36
Q

High Urine S.G

A

dilute/retest 1:2 (urine:distilled water)

37
Q

What does the refractometry scale go by?

A

2x

1.020 —> 1.040

38
Q

Odor

A

usually clinically insign

ammonia breakdown as urine sits RT
diab ketones - fruity
Bacteria/yeast - foul
Maple syrup urine
Asparagus
PKU - mousy

Urinalysis Spring (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions