Nuclear Medicine: Exit Exam Practice Questions

Nuclear Medicine: Exit Exam Practice Questions

with 100% Correct Answers A patient with a chest tube arrives in the nuclear medicine department for an Imaging study. The

technologist should:

• Cancel the procedure because the chest tube apparatus will interfere with the study
• Place the chest tubes external apparatus on the Imaging table next to the patient

C.Hang the chest tubes external apparatus from an IV pole and raise it above the patient's chest D.Place the chest tubes external apparatus on a level lower than the patient's chest - Correct Answer D.Place the chest tubes external apparatus on a level lower than the patient's chest for proper drainage, chest tube apparatus must always remain lower than the patient's chest (Bolus: (2011) Steve's Review of Nuclear Medicine Technology: Preparation for certification examination) 99mTc-Oxidronate image of the region shown would demonstrate all the following structures except

the:

• Costochondral Junctions
• Acromion processes
• Sternum
• Clavicles - Correct Answer B. Acromion processes 1 / 4

The image depicts an anterior view of the rib cage and proximal upper extremities. The acromion processes would be demonstrated on a posterior view of the upper thorax that includes the scapulae.Which of the following is common to imaging gastroesophageal reflux in both adults and children?

• The patient ingests diluted hydrochloric acid with the radiopharmaceutical
• 99mtc sulfur colloid is the radiopharmaceutical of choice
• The patient must fast from Midnight before the test
• An abdominal binder is used to increase pressure over the abdomen - Correct Answer B. 99mtc sulfur

colloid is the radiopharmaceutical of choice 99mTc-Sulfur Colloid is the radiopharmaceutical used to image gastroesophageal reflux in both adults and children. However, adults are administered a mixture of dilute hydrochloric acid, orange juice and tracer after fasting from midnight. In infants and toddlers, the procedure is performed at the time of a scheduled feeding, so they may fast as little as two hours before receiving the tracer. In adults, an abdominal binder is used to increase external abdominal pressure to demonstrate more subtle instances of reflux. Because the abdominal muscles are important in pediatric respiration, the binder is typically not used with children, particularly infants.

The shelf life of most 99mTc-labeled radiopharmaceuticals is:

• 4-6 hrs
• 6-8 hrs
• 10-12 hrs
• 16-18 hrs - Correct Answer B. 6-8hrs

For most 99mTc-Radiopharmaceuticals, the expiration time is 6 hrs, equal to the physical half-life of 99mTC (t1/2= 6 hrs) On an intrinsic field uniformity image, the area of increased activity around the image is called:

• Flare phenomenon
• Septal penetration 2 / 4

• Edge packing
• Halo effect - Correct Answer C. Edge packing

The phenomenon known as Edge packing can show up as a bright rim of activity around the perimeter of the [intrinsic flood]. To prevent Edge packing, most manufacturers provide a lead- shielded ring that masks the effect when attached to the edge of the camera head.A patient who becomes hypoglycemic may exhibit all the following signs and symptoms except:

• Weakness and shakiness
• Irritability
• Nausea and vomiting
• Confusion - Correct Answer C. Nausea and vomiting

The onset of symptoms of hypoglycemia may be sudden and include general weakness, sweating, clammy, cold skin, tremors, nervousness, irritability, hunger, blurred vision and loss of consciousness.The condition can be remedied quickly with the administration of sugar (3 pieces of candy or fruit juice) Which of the following is the correct patient/camera positioning for imaging a transplanted kidney?Patient position Camera positions I Upright Anterior II Upright Posterior III Supine Anterior IV Supine Posterior

• I
• II

C. III

• IV - Correct Answer C. III 3 / 4

Imaging of renal transplants is performed with the patient supine. Anterior images are obtained over the iliac fossa containing the transplanted kidney.The gamma ray spectrum shown below was obtained at a voltage of 800. To move the photo peak into the window, which of the following actions should be taken?

• The voltage should be increased
• The voltage should be decreased
• The window should be widened
• The window should be moved - Correct Answer A. The voltage should be increased

As voltage is increased, the gamma-ray spectrum moves to the right. Therefore, increasing the voltage will shift the photopeak toward the window and, if the voltage is increased sufficiently, into the window.Which of the following 99mTc-labeled agents is the preferred radiopharmaceutical for demonstrating intermittent gastrointestinal bleeding?

• Human serum albumin
• Red blood cells
• Lidofenin
• Sulfur colloid - Correct Answer B. Red blood cells

99mTc heat-treated red blood cells (RBCs) and 99mTc-sulfur colloid techniques have for the most part been replaced by non heat-treated 99mTc labeled red blood cell procedures for performing GI bleeding studies.When the septa are removed and coincidences are recorded between detectors lying in any ring

combination the data are acquired:

• / 4