21 Questions
What is the function of contrast media in medical imaging?
To enhance subject contrast for clear visualization
Which type of contrast media is specifically used to demonstrate organs or tubular structures?
Positive contrast media
What type of contrast media is Barium Sulphate considered to be?
Positive contrast
Which type of contrast agent causes T2 shortening signal appearance to be dark in MRI?
Superparamagnetic agents like Iron oxide manganese
What is the function of ultrasound contrast agents like Leovist?
Aiding in harmonic imaging
Which type of contrast agent is most commonly used for vascular ultrasound imaging (Doppler)?
Microbubbles
'Radiolucent' refers to materials that are:
Low atomic number
'Radiopaque' materials in medical imaging generally have a:
'White on film' appearance
What is the timeframe within which renal dysfunction is identifiable?
48 hrs
In the context of Acute Kidney Injury (AKI), what does AKIN stand for?
Acute Kidney Injury Network
According to the KDIGO classification, what criteria defines Stage 2 Acute Kidney Injury?
>3 fold increase in serum Cr
Which of the following is a recommended action to decrease the risk of Contrast Induced Acute Renal Injury (CIN)?
Minimize volume of radiographic contrast media
What is the initial recommended infusion rate of isotonic saline before a procedure to manage intravascular volume?
100-150 ml/hr
What should be considered post-procedure to monitor renal function?
Consider follow-up SCr 48 hrs post procedure
What is the key difference between Stage 1 and Stage 2 AKI based on the KDIGO classification?
>1.5 to 1.9 fold increase in Cr
Which medication should be withheld before a procedure to manage the risk of Acute Kidney Injury?
Ibuprofen (NSAID)
What is the main risk factor for Contrast Induced Nephropathy according to the text?
Severe dehydration
Which of the following is a symptom of mild anaphylactoid reactions to iodine-based contrast agents?
Nausea
What is a contraindication for using MRI contrast according to the text?
GFR below 25%
Which imaging technique involves exclusive use of Barium Sulphate according to the text?
Intravenous cholangiography
In which adverse reaction is metallic taste in the mouth a common symptom?
Adverse effects of MRI contrast
Learn about renal dysfunction and the AKIN/KDIGO classification for acute kidney injury. Discover the stages of AKI and the criteria for each stage. Explore recommendations for decreasing the risk of contrast-induced acute renal injury.
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