Exam 14 hard stuff

Morphological Kidney scan uses

DMSA

DMSA =

Succimer

MAG3 =

Mertiatide

DTPA =

Pentetate

Effective renal plasma flow uses

MAG3

Cystogram dose

0.5-1 mCi Mag3/DTPA/SC/Pertechnetate

Cystogram IV radiopharm

DTPA or MAG3

Cystogram views

POST dynamic pre void and post void image

EPFR dose

2-10 mCi Mag3

Mag3 MOL

95% tubular secretion

ERPF views

Dynamic ANT/POST/BOTH phase 1 and 2, pre upright, post void (2min)

Normal ERPF value

500 mL/min

GFR dose

5-15 mCi DTPA

DTPA MOL

99% glomerular filtration

2 dynamic phases ANt/POST, pre upright and post void

Normal GFR

125 mL/min

Renal Anatomy scan

3-5 mCi DMSA

DMSA MOL

Active Transport

DMSA Renal image wait time

2-4 hours

DMSA Renal anatomy views

A/P 15 mins

Renal Flow Dose

2-10 mCi Mag3 or 5-15 mCi DTPA

Adult lasix dose

0.5 mg/kg

Max lasix dose

40 mg

Peds lasix dose

1 mg/kg

Renal Flow views

Pre-lasix: Dynamic A/P, inject lasix during post lasix, pre upright, post void

Peak radpharm uptake during renal flow study

3-5 mins

Time in which half the tracer has drained

<12 mins

Time Activity Chart

Renogram (ace inhibitor) dose

2-10 Mag3 or 5-15 DTPA

Captopril dose

25-50 mg

Enalaprilat dose

40 ug/kg

Indication: renal artery stenosis. Study?

Renogram

Cardiac shunt dose

2 mCi MAA

Cardiac shunt views

A/P lung 2 min, LATS head 2 mins

Aerosol lung vent dose

25-40 mCi DTPA in 2-4 mL (0.5-1 mCi actual dose)

Xe lung vent dose

20 mCi

First breath acquisition

300k counts

Equilibrium acquisition

80-100 k counts

Washout acquisition

5 min dynamic

Lung perfusion dose

4-6 mCi MAA

Lung perfusion A/P counts

100 kcts

Cardiac shunt indications

hepatopulmonary syndrome (Arteriovenous Fistula Pulmonary)

Combined V/Q shunt study indications

shortness of breath possibly caused by right to left shunt or pulmonary embolism

V/Q indications

PE, COPD, pulmonary hypertension, transplant, cancer, pulmonary vein stenosis, dyspnea

dynamic renal scan indications

Acute and chronic renal failure

Unilateral/bilateral renal disease

Obstructive uropathy

Hydronephrosis

Status post renal transplantation

Pyelonephritis and parenchymal scarring

dynamic renal scan with lasix indications

obstructive vs. non obstructive hydronephrosis

DMSA scan indications

split function, evaluation of size, shape, position, and number of kidneys

Cystography indications

vesicoureteral reflux, bladder dysfunction