44 results
Nuclear myocardial perfusion imaging (MPI) may be performed by either single-photon emission CT (SPECT) or positron
administration of radioactive ... dipyridamole and adenosine ... non-selective adenosine ... coronarystenosis, #adenosine
Real time ECG of a patient in SVT being actively Cardioverted with Adenosine

- Mark Ramzy DO,
Cardioverted with Adenosine ... Cardioversion #Adenosine
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
normal or increased radioactive ... normal or increased radioactive ... increased; decreased radioactive ... normal; decreased radioactive
Single Syringe Adenosine - Instructions
1) Dilute 6-12 mg of adenosine in a syringe for a total
Single Syringe Adenosine ... Dilute 6-12 mg of adenosine ... Single #Syringe #Adenosine
Thyroid Disorders - Differential Diagnosis Algorithm
Hypothyroidism:
 • Hasimoto’s
 • Radioactive Iodine 
 • Hypopituitarism
 • Iodine
Hasimoto’s • Radioactive
Approach to the Diagnosis of Hyperthyroidism - Differential Diagnosis and Workup Algorithm

 • Secondary Hyperthyroidism (↑↔TSH,
T3/Free T4) Radioactive ... Multinodular goiter Radioactive
Millicurie limit guidelines for major and minor radioactive spills.
I-131 - 1mCi
In-111 - 10 mCi
F-18 - 10
major and minor radioactive ... Label "caution radioactive ... limits #guidelines #radioactive
Antiarrhythmic Drugs

CLASS IA
 • Procainamide, Quinidine, Disopyramide
CLASS 1B
 • Lidocaine, Mexiletine
CLASS 2
 • Propranolol, Esmolol
CLASS 4
MISCELLANEOUS • Adenosine
Graves' Disease Treatment
Thionamides (mainly methimazole)
 • Chance of remission in up to 2 years
 • No
40%) • Low cost Radioactive
Differentiation of Causes of Hyperthyroidism According to Pattern of Radionucleotide Uptake
Reduced uptake:
 • Thyroiditis
 • Exogenous
adenoma #rai #radioactive