ARRT LMRT EXAM –WITH Q & A 2024
Hydrogen - CORRECT ANSWERNuclei in fat and fat
Differences in chemical shift at.... - CORRECT ANSWER1T-3.5 T parts per million
majority of nuclei align.... - CORRECT ANSWERParallel
Net magnetization vector (NVM) - CORRECT ANSWERExcess number of H prot...
Patients with risk factors with contrast should obtian.... - CORRECT
ANSWERGlomerukar filtration rate (GFR0 and Creatine prior to exam
Risk factors for contrast - CORRECT ANSWEROver 70 years, hx of hypertension,
diabetes, renal disease
Normal CR: - CORRECT ANSWER0.6-1.5mg/dl
Considered renal failure and in need of dialysis - CORRECT ANSWERGFR<30, CR
>2.4
Nephrogenic systemic fibrosis (NSF): - CORRECT ANSWERRare disease, occcurs in
renal failure pts. Thickening and darkening of skin, affects heart, kidneys and lunges.
Possible reaction to gadolinium.
Severe reactions like bronchospasms may require - CORRECT ANSWEREpinephrine
High risk pts can be pre-medicated with _______________ to reduce risk of reactions -
CORRECT ANSWERsteroids or Benadryl
Gadolinium - CORRECT ANSWERMetal-based compound surrounded by chelates,
allowing it to pass through the body and overcome its toxicity
- CORRECT ANSWERInfiltration of contrast into surrounding tissues. Remove
needle/IV, hold pressure until bleeding stops, apple ice. Must document chart.
- CORRECT ANSWER120/80 mmHG
- CORRECT ANSWERHighest pressure when heart contrast
- CORRECT ANSWERLowest pressure when heart relaxes
- CORRECT ANSWERAverage pressure during a cardiac cycle
- CORRECT ANSWEROver 140/90
- CORRECT ANSWER90/60
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