Contrast Imaging

Last updated 20.09.12

Index

Features

- Used in many CTs & some MRIs

- Required for angiograms ie: CTPA

Considerations

- U&E: renal function: CRF, ARF

- Contrast agent usually renally cleared

- If eGFR low must consider wo contrast: seek Renal opinion

- +/- NAC

- Previous reactions to contrast

- DM Type 2

- Metformin must be ceased day of procedure & withheld for 48 hrs

- Increased risk of metabolic acidosis (side effect of contrast agent)

- IV access: usually 18 gauge

- Must be a Dr present whilst administering IV contrast

- May be Radiologsit, A/H likely Dr who orders test

- Mx of reactions to contrast

References