CH. 3 & 6 Flashcards

(73 cards)

1
Q

what was the 1st clinical sample examined

A

urine

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2
Q

how was albumin found

A

boiling urine

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3
Q

who created the 1st medical licensure laws

A

charlatans/”pisse prophets”

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4
Q

in the 17th century what did the microscope do for urine examination

A

evaluation of sediment

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5
Q

what became part of routine physical in 1827

A

urine evaluation

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6
Q

what test is a fluid biopsy of the kidney

A

urinalysis

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7
Q

true or false: urine is readily available and easily collected

A

true

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8
Q

what are the factors of pre examination of urine

A

collection
handling
preservation

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9
Q

what time of urine collection would be for a routine UA sample

A

first morning

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10
Q

what is a suffiencient vol of urine for UA

A

50 mL

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11
Q

what is a min vol of urine for automated methods

A

4 ml to 15 ml

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12
Q

when should a UA be performed after voiding

A

30 min to 2 hours

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13
Q

why are dip sticks performed at room temp

A

they are enzymatic

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14
Q

how would you collect a baby’s urine

A

disposable pediatric bag

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15
Q

what kind of instructions do you have to give to a pt collecting urine

A

oral and written

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16
Q

true or false: the location of the pt needs to be on the urine collected

A

true

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17
Q

true or false: the ID # needs to be on the urine collected

A

true

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18
Q

true or false: the requesting physician needs to be on the urine collected

A

true

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19
Q

true or false: the diagnosis needs to be on the urine collected

A

true

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20
Q

what % of urine is water

A

95-96%

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21
Q

what % of urine is urea metabolic waste

A

> 50%

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22
Q

what enzyme would you want to prevent in urine

A

urease

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23
Q

function of urease

A

breaks down urea

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24
Q

what is the best method of preservation of urine

A

refrigeration

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25
what kind of urine preservation will interfere with pH but is ok for culture
boric acid
26
what kind of urine preservation is good for sediment not chemical
formalin
27
what kind of urine preservation inhibits glycolysis
sodium flouride
28
true or false: you can use sodium fluoride with glucose oxidase reagent strip
false
29
what kind of urine preservation is used for microscopic examination
weak acid
30
what does it mean if unpreserved urine color darkens
breakdown of chromogen
31
what does it mean if unpreserved urine has an odor
bacterial growth and decomposition
32
what does it mean if unpreserved urine clarity decreases
bacterial crystals amorphous
33
what does it mean if unpreserved urine has a high pH
breakdown of urea to ammonia
34
what does it mean if unpreserved urine glucose decreases
glycolysis | bacterial utilization
35
what does it mean if unpreserved urine ketone decreases
volatilization of acetone
36
what does it mean if unpreserved urine bilirubin decrease
destroyed by light
37
what does it mean if unpreserved urine urobilinogen decrease
destroyed by light
38
when does unpreserved urine nitrite increase
produced after collection
39
when does unpreserved urine bacteria increase
after collection
40
what does it mean if unpreserved urine has cast/cells disintegrating
alkaline | hypotonic
41
what type of urine sample is routine screening and cytology
random
42
what type of urine sample is pregnancy test, orthostatic protein, and cytology
1st morning
43
what type of urine sample is fasting, GTT, 2 hour PP
fractional or double voided
44
what is a double voided test
collection of blood and urine
45
what type of urine collection technique is used for bacterial cultures or to prevent vaginal contamination
midstream "clean catch"
46
where is a catheter inserted
urethra to bladder to ureters
47
what type of urine collection technique involves puncturing of abdominal wall and distended bladder by using needle and syringe
suprapubic aspiration
48
is a suprapubic aspiration sample sterile
yes
49
What are the physical properties examined in urine
Color, clarity or transparency, odor, volume, solute concentration
50
if urine has a yellow foam what protein is it
bilirubin
51
If urine has a white foam what protein is it
Albumin
52
How is solute concentration measured
specific gravity and Osmolality 
53
what Is a good environment to examine urine color
good light | Against a white background
54
What is the normal color of urine
light/straw to amber
55
What metabolic pigment make urine yellow
urochrome
56
what metabolic pigment makes urine yellow
urochrome
57
what metabolic pigment makes urine pink
uroerythrin
58
what metabolic pigment makes urine orange/brown
urobilin
59
what method used to examine urine’s clarity
schweitzer method
60
How would you describe the clarity of urine with no visible particulate matter present
clear
61
How would you describe urines clarity with some visible particulate matter present with no distortion of newsprint
hazy
62
How would you describe the clarity of urine where the newsprint is distorted but can’t be seen through urine
cloudy
63
How would you describe the clarity of urine or news print cannot be seen through urine
Turbid
64
What clarity descriptions of urine is problematic
Cloudy and turbid
65
What disease produces greater than 500 mL of urine during the night with a specific gravity of less than 1.018
nocturia
66
What disease produces less than 400 mL of urine in 24 hours
oliguria
67
What does osmolality measure
Number of solute particles
68
What does specific gravity measure
Number of solute present and molecular size
69
What is the normal range of specific gravity of a random adult sample
1.002 to 1.035
70
def? Comparison of the ratio of light refraction and velocity change as it passes from air into solution
Refractive index of light
71
What disease has a low specific gravity
hypothenuria
72
What disease has a high specific gravity
hyperthenuria
73
What disease has a fixed specific gravity
lsothenuria