Test Prep for Nuclear Medicine Exams

*Gateway must be notified of cancellation or rescheduling of appointment by 12 pm the business day before patient’s scheduled exam or the patient will be billed for the aforementioned unused time-sensitive radioisotope. 

*Patient’s prior imaging on related body part is required at the time of test.  Results will be delayed without it.

Bone Scan Prep – No prep required. Patient may eat, drink, and take all medications. Bone Scan requires 2 same day appointments scheduled 3 hours apart. The patient may leave during the 3 hour delay if needed.

Brain Scan – No prep required. Patient may eat, drink, and take all medications.

Liver Hemangioma or RBC Spect– No prep required. Patient may eat, drink, and take all medications.

Liver Spleen Scan – No prep required. Patient may eat, drink, and take all medications.

MUGA– No prep required. Patient may eat, drink, and take all medications.

Parathyroid Scan – No prep required. Patient may eat, drink, and take all medications.  Parathyroid Scan requires 2 same day appointments, scheduled 3 hours apart. Patient will be required to arrive for an injection 3 hours prior to the scheduled exam, and may leave during the delay.

Thyroid Scan – No prep required. Patient may eat drink and take all medications.

Thyroid Uptake & Scan – Please see full list at the bottom of this page.

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Gastric Empyting Scan – Patient is required NOT to eat, drink, or take pain medication or narcotics 4 hours prior to the exam. Patient is required to discontinue any of the following medications 48 hours prior you your exam: CISAPRIDE, DOMPERIDONE, MAXOLON, METOCLOPRAMIDE, METOZOL, OCTAMIDE, or REGLAN.

Hida Scan– Patient is NOT to eat, drink, or take pain medication or narcotics 4 hours prior to exam.

Meckel’s Scan – Patient is NOT to eat, drink, or take pain medication or narcotics 4 hours prior to exam.

Renal Scan – Patient needs to discontinue any type of diuretics 24 hours prior to exam. GATEWAY MUST KNOW PRIOR TO ARRIVAL EXACTLY WHICH BLOOD PRESSURE MEDICATION HAS BEEN PRESCRIBED TO PATIENT. If your blood pressure medication is an ACE INHIBITOR (listed below), you must discontinue at least 48 hours prior to appointment.

ACCUPRIL, ACEON, ALTACE, BENAZEPRIL, CAPTOPRIL, CAPOTEN, DIAVAN, ENALAPRIL, FOSINOPRIL, LEXXEL, LISINOPRIL, LOTENSIN, LOTREL, MAVIK, MOEXIPRIL, MONOPRIL, PERRINDOPRIL, PRINIVIL, PRINIZIDE, QUINAPRIL, RAMIPRIL, TARKA, TRANDOLAPRIL, UNIRETIC, UNIVASC, VASERETIC, VASOTEC, ZESTORETIC, ZESTRIL.

Patient can continue to take Calcium Channel Blockers such as NORVASE OR PROCARDIA. Patient is required to provide prior imaging results on related body part. Not having prior images at the time of appointment will delay test results.

Thyroid Uptake and Scan – Patient is NOT to eat or drink 4 hours prior to the first part of this exam. This is a 3 part appointment over 2 consecutive days.  Parts 1 and 2 are scheduled on the same day, 4 hours apart from each other. Patient may leave during delay. Part 3 is scheduled 24 hours after Part 1.

Ex. Part 1 Monday @ 9:00am, Part 2 Monday @ 1:00pm, Part 3 Tuesday @ 9:00am

Patient is required to provide prior imaging results on related body part. Not having prior images at the time of appointment will delay test results.

*Gateway must be notified of cancellation or rescheduling of appointment by 12:00 pm the day before patient’s scheduled exam or the patient will be billed for the unused time-sensitive Radioisotope.

The following list of MEDICATIONS and IV CONTRAST AGENTS will affect the results of an I-123 Thyroid Uptake and Scan.  The required clearance times are listed below and must be discontinued prior to performing an I-123 Thyroid Uptake and Scan.

 

Thyroid Hormones or Antithyroid Agents
Cytomel
6 weeks
Desiccated Thyroid (Armour Thyroid)
6 weeks
Euthroid
6 weeks
Levoid
6 weeks
Levothroid
6 weeks
Levothyroxine (Levoxyl)
6 weeks
Levoxine
6 weeks
Methimazole (Tapazole, Northyx, Propylthyracil)
6 weeks
Proloid
6 weeks
Propylthiouracil (PTU)
2 weeks
Synthroid
6 weeks
Thyrolar
6 weeks
Thyronine
6 weeks

 

IV Contrast agents
Arteriography
6 weeks
CT scan w/ Contrast
6 weeks
Heart Catheterization
6 weeks
IVP
6 weeks
Laparoscopic Cholecystectomy (Lap-Chole)
6 weeks
Myelogram
6 weeks
Renografin
6 weeks
Salpingography
6 weeks
Salpix
6 weeks
Telepaque
6 weeks

 

Miscellaneous
Lugols Solution / SSK
6 weeks
Perchlorate
6 weeks
Vaginal Suppositories (containing iodine)
4 weeks
Multivitamins
2 weeks
Antibiotics (Penicillin, Sulfa)
1 week
Antihistamines
1 week
Combid
1 week
Cough Medicines (with potassium idodide)
6 weeks
Cough Medicines (without potassium idodide)
1 week
Seafood
3 days

 

*Gateway must be notified of cancellation or rescheduling of appointment by 12:00 pm the business day before patient’s scheduled exam or the patient will be billed for the unused time-sensitive Radioisotope.