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summer semester pt care > pt care ch 21 > Flashcards

pt care ch 21 Flashcards

1
Q

atomic number

A

number of protons in the nuclei

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2
Q

what enhanced subject contrast depends on

A

atomic number of the element used in particular medium and concentration of atoms of the element per volume medium

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3
Q

negative contrast agents decrease and produce

A

attenuation fo the beam and produce areas of increased density on the radiograph (gas, air)

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4
Q

positive contrast agents increase and produce

A

attenuation and produce areas of decreased density on the radiograph

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5
Q

x-ray photons effect on radiolucent contrast media

A

transmitted or scattered through media

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6
Q

contraindications for using barium in lower gi (pt conditions)

A

diverticulitis ulcerative colitis older patients toxic megacolon

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7
Q

how much should a balloon be inflated for be

A

30-90

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8
Q

purpost of heating contrast

A

reduces viscosity and facilitates ability for rapid injection

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9
Q

osmosis

A

water moves from area of high concentration to an area of low concentration

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10
Q

BUN what is it

A

blood urea nitrogen

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11
Q

what is creatnine

A

wast roduct of metabolism

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12
Q

what must be done when a pt is on glucophage

A

discontinue 48 hrs before and after procedure

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13
Q

why nonionic iodinated contrast isnt used on all patients

A

cost 2 to 3 times more

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14
Q

exams water soluable contrast is used

A

ct studies

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15
Q

pt care aspect that must be done beore administering water soluable contrast

A

patient history

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16
Q

oil bast contrast made from

A

fatty acids found in animals and plants

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17
Q

what happens when oil based contrast is exposed to light, heat, air, how to prevent from happening

A

starts to decompose store in dark cool place

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18
Q

what not to use when admisisturing oil-based contrast and why

A

plastic syringe

toxic substances from plastic dissolve into contrast

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19
Q

dissadvantage of oil-based contrast

A

stays in body

20
Q

radiopharmaceutical is not

A

contrast agent

21
Q

ionic

A

one particle with a negative charge and other has positive charge

22
Q

atomic number of barium

A

56

23
Q

hypervolemia

A

excess fluid entering circulatory system

24
Q

chemical formula of barium

A

BaSO4

25
Q

iodine atomic number

A

52

26
Q

barium peritonitis

A

barium leakage from a duct or vessel resulting in inflamation of abdominal cavity

27
Q

thoracostomy tubes remove what

A

fluid or air

28
Q

body temp

A

measurment of degree of heat of the deep tissues of the body

29
Q

homeostasis

A

constancy in the inter;nal environment maintained by adaptive responses that promote healthy survival

30
Q

pulse oximeter

A

photoelectric device used to determine oxygen saturation of blood

31
Q

tachypnea

A

rapidly of breathing

32
Q

respiratory system plays what role with body temp

A

removes excess heat through ventilation

33
Q

common routes for measuring body temp

A

oral, tempanic, temporal, axillary, rectal

34
Q

method of body temp measurment said to be most accurate

A

rectal

35
Q

how respiratory rates measured

A

number of breaths per min

36
Q

sphygnomanomete consists of and where is it placed on the patient

A

cuff tubing valve bulb \

upper arm of pt

37
Q

common device for delivering low concentration of oxygen

A

nasal cannula

38
Q

systolic

A

period of contraction of heart

39
Q

diastolic

A

period to dilation or a period of relaxation of the heart

40
Q

dyspnea

A

difficule or labored breathing

41
Q

how long thermometer has to stay in place for axillary reading

A

5 to 10 min

42
Q

how long does it take for brain damage when there is lack of oxygen

A

6 min

43
Q

when is systolic pressure obtained when taking a blood pressure

A

first sound of blood flow

44
Q

when is diastolic pressure obtained when taking a blood pressure

A

last sound of blood flow

45
Q

how is blood pressure recorded

A

systolic

diastolic

46
Q

tissues are most sensitive to hypoxia

A

brain, heart, lungs and liver

47
Q

3 common sites for measuring pulse

A

radial artery brachial artery carotid artery

summer semester pt care (6 decks)

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