Thyroid Uptake and Scan Information and Instructions

Thyroid Uptake and Scan Information and Instructions Redwood Regional Medical Group’s imaging facility is located at 121 Sotoyome Street in Santa Ros...
Author: Darlene Hicks
0 downloads 2 Views 315KB Size
Thyroid Uptake and Scan Information and Instructions

Redwood Regional Medical Group’s imaging facility is located at 121 Sotoyome Street in Santa Rosa. When arriving, please check in at Room 107 in the main hallway. If you must cancel or reschedule, please notify us at least 24 hours prior to your exam, at (707) 5254040.

General Information: The thyroid uptake and scan will be administered in three appointments over a two day period. It will evaluate the function and appearance of your thyroid gland based on the uptake of a small amount of radioactive iodine. If there is a possibility that you might be pregnant or are currently breastfeeding, please inform the scheduling department or your referring physician before the examination. Wear loose, comfortable clothing, avoiding jewelry around the neck during the imaging appointments.

Prior to your test: Please observe the following in preparation for this test:     

Avoid multivitamins containing iodine. (Vicon Forter is okay.) Avoid any products with red, orange, or brown food dyes. Many of these contain iodine. Most foods labels do not specify which red dye is used. Red dye FD&C #40 is okay. Avoid food items with carrageen, agar, algin, and alginates. Avoid restaurants and fast foods, as there is no way to determine which restaurants use iodized salt. Check with your physician before making any changes in medications.

Also, there are several substances that may affect the iodine uptake values of your scan. They are listed here. With your doctor’s approval, it is suggested you discontinue any use of these substances or procedures for the time listed to the right of each category.

Adrenocorticosteroids

Perchlorate

1 week

Bromides

Propythiouracil (PTU)

1 week

Cordarone

Methimazole

1 week

Mercurials

Tapazole

1 week

Nitrates

Thiocyanate

1 week

Iodine solution (Lugol’s)

Liotrix

2 weeks

Liothyroinine Sodium

Pima

2 weeks

Supersaturated potassium iodide (SSKI)

Triostat

2 weeks

Thiiodothyronine (Cytomel)

2 weeks

Amiodarone

Unithroid

4 weeks

Amour

Levothyroxine

4 weeks

Levothroid

Levoxyl

4 weeks

Thyroid extract (Synthroid, Proloid)

Intravenous x-ray contrast agents (IVP, CT, Venogram)

2 months

Oral cholecystographic agents

2 months

Oil based contrast used for Bronchograms and Lymphangiograms has a long-term influence on iodine uptake values. Please contact our radiologist if you have had one of these exams within the last few years. Please follow a low iodine diet for one week prior to the exam. This will help deplete the body of its natural stores of iodine and make the radioactive testing or treatment more effective. (Please see the meal-planning suggestions and avoidances at the end of these instructions.) The first day of your test: On your first visit you will be asked to swallow a capsule that contains a small amount of iodine. Please do not eat any foods four (4) hours prior to your appointment time. You may drink water or a small amount of clear juice if necessary. You will be asked to withhold food for an additional hour after taking the capsule to allow time for digestion. You will be released and may go about your normal routine but will need to return about six (6) hours later. Your second visit will take about 20 minutes to collect images and measurements. The second day: You will return the following morning for more imaging and measurements that will take about 10 minutes.

LOW IODINE DIET Here are some suggestions to assist you with meal-planning:

Milk and Dairy Products

Food Allowed (No Salts)

Foods to Avoid (Salts)

Non-dairy creamer

Cheese, Cottage Cheese Custard Egg, Egg substitute Eggnog Ice Cream, Yogurt Milk, Evaporated milk Pudding Sour Cream

Meat and Meat Substitutes

Fresh beef, chicken, lamb, pork, turkey, veal

Bacon

Unsalted peanut butter

Corn beef Hot Dogs, Luncheon meats Regular peanut butter Sausage

Fish

Fresh fish allowed

Canned tuna Kelp Sardines Seaweed Shellfish

Diet Cont.

Food Allowed (No Salts)

Foods to Avoid (Salts)

Starch

Bread (