Macroscopic Urine Examination Flashcards

1
Q

physical examination of urine includes:

A
  • urine color
  • clarity
  • specific gravity
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2
Q

pigment present in urine that gives a yellow color of urine

A

urochrome

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3
Q

urochrome was named by

A

Thudichum

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4
Q

pink pigment, is most evident in specimens that have been refrigerated, resulting in the precipitation of amorphous urates. attached to the urates, producing a pink color to the sediment.

A

uroerythrin

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5
Q

amorphous material in acidic level

A

amorphous urates

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6
Q

amorphous material in alkaline level

A

amorphous phosphate

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7
Q
  • pigment of amorphous urates

- pigment of amorphous phosphate

A
  • pink

- white

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8
Q

an oxidation product of the normal urinary constituent urobilinogen, imparts an orange-brown color to urine that is not fresh

A

urobilin

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9
Q

constituent of urobilinogen

A

urobilin

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10
Q

urine color associated with oxidation of porphobilinogen to porphyrins

A

red / port wine

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11
Q

urine color associated with melanoma and alkaptonuria

A

black

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12
Q

_ - oxidation product of the colorless pigment, melanogen, produced in excess when a malignant _ is present

A

melanin; melanoma

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13
Q

_ metabolite of phenylalanine, imparts a black color to alkaline urine from persons with the inborn-error of metabolism, called alkaptonuria

A

homogentisic acid

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14
Q

condition which urine color is normal at first but when left standing at RT changed color to black

A

alkaptonuria

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15
Q

inborn-error of metabolism that produce black urine

A

alkaptonuria

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16
Q

urine color associated with pseudomonas infection

A

green

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17
Q

urine color associated with clorets

A

blue-green

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18
Q

urine clarity with no visible particulates, transparent

A

clear

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19
Q

urine clarity with few particulates, print easily seen through urine

A

hazy

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20
Q

urine clarity with print cannot be seen through urine

A

turbid

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21
Q

urine clarity with many particulates, print blurred through urine

A

cloudy

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22
Q

urine clarity with precipitate or be clotted

A

milky

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23
Q

t/f. milky urine is not rare.

A

false

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24
Q

Semen is only reported when the physician is checking for _

A

fertility

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25
point of reference
Squamous epithelial cells
26
condition which sperm goes to urine bladder instead of urethra
retrograde ejaculation
27
Nonpathologic Causes of Urine Turbidity
SMASFRTV “smasfortv” - Squamous epithelial cells - Mucus - Amorphous phosphates, carbonates, urates - Semen, spermatozoa - Fecal contamination - Radiographic contrast media - Talcum powder - Vaginal creams
28
Pathologic Causes of Urine Turbidity
RWBYNALL “rawbynall” - RBC - WBC - Bacteria - Yeast - Nonsquamous epithelial cells - Abnormal Cysts - Lymph fluid - Lipids
29
evaluation of urine concentration
specific gravity
30
urine with a specific gravity of 1.010
isosthenuric
31
urine with a specific gravity of <1.010
hyposthenuric
32
urine with a specific gravity of >1.010
hypersthenuric
33
specific gravity of most random specimens fall between
1.015 and 1.030
34
to determine whether specimen concentration is adequate to ensure the accuracy of chemical tests
specific gravity
35
current urine specific gravity measurement
- refractometer - osmolality - reagent strip
36
specific gravity measurement with a principle of pKa changes in polyelectrolyte by ions present
Reagent strip
37
specific gravity measurement with a principle of changes in colligative properties by particle number
osmolality
38
refractometry principle
refractive index
39
calibration of manual specific gravity measurement for every 1 gram of protein subtract _
0.003
40
calibration of manual specific gravity measurement for every 1 gram of glucose subtract _
0.004
41
temperature adjustment in refractometer
none
42
temperature adjustment in urinometer
Temperature C = 5/9 (F-32)
43
color microscopic correlations
blood
44
clarity microscopic correlations
- hematuria vs. hemoglobinuria / myoglobinuria | - pathologic and non pathologic cause of turbidity
45
(turbid) gross hematuria has _ RBCs
packed-filled
46
microscopic hematuria has _ RBCs
intact
47
blood microscopic correlations
RBCs, RBC Casts
48
protein microscopic correlations
casts, cells
49
nitrite microscopic correlations
bacteria, wbcs
50
a true UTI is accompanied by _
WBCs
51
leukocyte esterase microscopic correlations
wbcs, wbc casts, bacteria
52
glucose microscopic correlations
yeast
53
normal urine odor
aromatic
54
Foul, ammonia-like odor caused by
UTI, bacterial decomposition
55
Fruity, sweet odor is caused by
Ketones (diabetes mellitus, starvation, vomiting)
56
Maple syrup urine disease odor
maple syrup
57
rancid odor is caused by
tyrosinemia
58
mousy odor is caused by
phenylketonuria
59
sweaty feet odor is caused by
isovaleric acidemia
60
cabbage odor is caused by
methionine malabsorption
61
bleach odor is caused by
contamination
62
rotting fish “galunggong-like” odor is caused by
trimethylaminuria
63
urinary pigments that are present when refrigerated
- urochrome | - uroerythrin