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CCBS Block 4 > Scintigraphy > Flashcards

Scintigraphy Flashcards

1
Q

what does “scint” mean in latin

A

spark

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2
Q

what is the diagnostic test that is used in
nuclear medicine and they take radioisotopes internally and they are put in with an IV and they follow blod to the desired tissue

A

scintigraphy

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3
Q

what also use gamma cameras to detect internal radiation but are not scint..

A

PET
and
SPECT

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4
Q

what is the test that has high sensitivity to evaluate perfusion in the left ventricle wall and thus indirectly access coranary flow

A

MPI Myocardial perdusion imaging

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5
Q

MPI can be performed with what 2 things

A
  • thallium 201 Chloride

- Sestamibi

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6
Q

pharmaceuticales labelled with 99mTc are also called what

A

sestamibi

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7
Q

what two things visualize muscles

A

thallium and sestamibi

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8
Q

red blood cells are tagged with what

A

99mTC

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9
Q

stress phase can be tested what two ways?

A
  • exercise
  • drugs:
  • dipyridamole
  • adenosine
  • dobutamine
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10
Q

what drug makes the heart go faster and stronger

A

dipyridamole

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11
Q

what drug slows the heart down

A

adenosine

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12
Q

Clincial applications of usualing thallium in MPI are? 4

A
  • diganose coranary artery disease
  • assess coranary stenosis
  • myocardial viability assesment
  • thereaputic efficacy
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13
Q

clinical uses of sestambi MPI

A
  • diagnose coranary disease
  • risk stratification after myocardial infarc
  • therapeutic efficacy
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14
Q

what is the principle objective for myocardial viability assessment

A

to see if the patient is eligible for coronary artery bypass grafting (CABG)

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15
Q

what can be used to test the viability of a myocardium

A

thallium

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16
Q

how can ischemia be evaluated

A

usuing stress-rest reinjection

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17
Q

what can u use to test the profusion of the coranry arteries

A

sestambi

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18
Q

Multi Gated Acquisition (MUGA ) is used for what

A

to study the blood flow to he heart

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19
Q

what is used to look at cardiomyopathy

A

MUGA

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20
Q

increased heart rate

A

chronotorpic effect

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21
Q

what is the small protein that is a fragment in blood after a blood clot

A

d dimer

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22
Q

what is named becuase it has two crosslinked D fragments of fibrin

A

d Dimer

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23
Q

MDCT?

A

multidetector computed tomography

24
Q

what do you do if a MDCT is not available

A

Ventilation and Perfusion imaging (V/PSCAN)

25
Q

what are he first thing we should always do for a patient?

A

history and physical exam

26
Q

what is the most common gas used for ventilation perfusion lung scintigraphy

A

zenon (133xe)

27
Q

how is perfusion scintigraphy accomplished?

A

by injecting radiolabelled particles

28
Q

what is the test that is noninvasive with oral administration of radiotracer that supplies information on the motility of the esophagus

A

scintigraphy of the esophagus

29
Q

the radioisotopes that are used for scinitgraphy on esophagus are ones that do not get absorbed by the mucosa of the esophagus what are they

A
  • colloids

- chelates

30
Q

explain the methods of a scintigraphy on esophagus

A

radioisotopes are givein in a dilution of 10ml of water and swallowing is stimulated every 20 minuets an the time it takes them to travel the length of the entire esophagus will let one know if there is any abnormality

31
Q

what does a manometer do

A

measure pressure

32
Q

what is the most sensitive and non evasive method for detecting gastroesophageal reflux

A

scintigraphy

33
Q

gastropoesis is common in who

A

type 1 diabetics

34
Q

what is the most commonly used radioisotpe fpr the kidney

A

DTPA

35
Q

what are the three anasramoses needed after a renal transplant

A
  • urettral
  • arterial
  • venous
36
Q

what is the choice test for evaluating acute pyelonephritis and renal scarring

A

renal cortical scintigraphy

37
Q

what is always done for women in menapause due to the high chances of having osteoperosis

A

bone scintigraphy

38
Q

what are bone scans based on

A

phosphate uptake in remodiling bone

39
Q

what is the disease of the bone that is localized to one humerus

A

Monostotic Paget Disease

40
Q

iodine 131 is very commonlyy used in

A

scintigraphy

41
Q

what is HIDA scan used for

A

to asses the gallbladder

42
Q

if you have

  • billary dyskinesia
  • billary obstruction
  • billary atresia
  • acalculosus cholecystisi then wat test will you get
A

HIDA scan ( cholescintigraphy)

43
Q

what is most common the cause of a gallbladder not contracting

A

billary dyskinesia

44
Q

what can be given to contract sphincter of oddi

A

morphine

45
Q

what can be given to contract the gallbladder

A

cholexytokin

46
Q

what is based on the fact that malignnat thyroid tissue only takes up a little iodine as compared to a normal thyroid

A

thyroid scan

47
Q

what nodules are cancerous when it comes to the thyroid

A

cold

48
Q

what is a more accutate test the thyroid scan

A

fine needle aspiation biopsy

49
Q

most small to moderate sized goiters can be treated with..

A

thyroid hormone

50
Q

who can you not give iodine 131 too

A

a pregnant lady or a breastfeeding lady

51
Q

what is given to treat benign and malignant disease of the thyroid

A

iodine 131

52
Q

search for occulat lesoins?

A

ROLL

53
Q

search for sentinel lymph nodes

A

SLN

54
Q

ROLL and SLN together

A

SNOLL

55
Q

if someone bleeds more then .5 ml you do what

A

you embolize them

56
Q

neoplasma
IDB
meckels diverticulum

are what

A

common caused for GI bleeding

CCBS Block 4 (2 decks)

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