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Clinical lab medicine Q1
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T of F: nuclear medication detects functional (vs. anatomical) properties of human tissue
True
False
True
Common radionucleotide used in nucelar medicine
Tc-99m
What is a radionucleotide combined with to give it specificity?
Pharmaceutical
2 cameras used in nuclear medicine
SPECT camera
PET camera
SPECT
Single photon emission computer tomography
Radioactivity involved in PET camera
Radioactive atom emits 2 photons in opposite directions
PET
Positron Emission Tomography
Radioactive substance used in nuclear thyroid scan
Radioactive iodine (taken up by the thryoid)
Thyroid nodules: cold vs. hot
Cold
: iodine not taken up as much - 1 of 4 malighant
Hot
: More iodine taken up - indicates hyperfunctioning, usually BENIGN (Grave's disease)
Pulmonary embolism: ventilation vs. perfusion
Normal ventilation
Decreased perfusion
Most common molecule used in PET/CTs
F-FDG
Fluorogioxyglucose
Is radioactive glucose
Warburg effect
Malignant cells show increased glucose metabolism
Use of x-rays to look at arteries
Angiography (must use dye in X-rays - not the case in MRI)
CT
Computed tomography
Combination of special x-ray equipment with sophisticated computers to produce multiple images
CT
Technique that uses powerful magnetic fields, radio frequency pulses and a computer
MRI
Subluxation vs. dissociation
Subluxation
: part of articular surface touching
Dislocation
: articular surface NOT touching AT ALL
What does a T2 weighted image bring out?
Edema or H2O
Condition associated with deep sulcus sign
Pneumothorax
Pneumothorax associated with contralateral mediastinal shift
Tension pneumothroax
Riggler's sign is associated with what condition?
Pneumoperitoneum (air seen inside and outside of bowel wall)
Severe sepsis with persistent hypotension despite adequate fluid resuscitation
Septic shock
Mortality rate fr septic shock
40-70%
Possible treatments for septic shock
Activated protein C
Early goal direct therapy
Medication for septic shock
Dopamine
*****NE
What measure identifies patients with hypoperfusion?
Serum lactate
Author
lhannan
ID
38217
Card Set
Clinical lab medicine Q1
Description
Clinical lab medicine Q1
Updated
2010-09-29T03:19:25Z
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