Cardio PQ
The correct dose of Regadenoson is ___ mg
0.4
Opening the gating window will have what effect?
Accepting more beats
Which of the following is least likely to require Aminophylline?
Adenosine
Which pharmacological stress agent is found in the body naturally and binds to cardiac receptors, leading to coronary dilation?
Adenosine
Which of the following can help reduce bowel activity near the heart?
All of the above---- Drinking carbonated beverages before imaging Having something to eat before imaging Walking around before imaging
PYP scans are used fro diagnose what?
Amyloidosis
ERNA/RCG scans are used for which of the following indications?
Assess LV volume and ejection fraction
Which ECG abnormality is shown on the image? (small symmetric waves with a peak)
Atrial flutter
Images with a R to R interval are broken into what?
Bins
Which of the following accumulates Tc-99m Sestamibi and therefore can obscure the heart during MPI?
Bowel and liver
Why must a strict zero sugar diet be followed when performing sarcoid imaging?
Consuming sugar will cause increased FDG uptake resulting in a false positive
The action potential causes the cells to do which of the following?
Contract
Which of the following is responsible for providing nutrients to the myocardium?
Coronary arteries
Which of the following are important electrolytes in the heart?
Potassium Sodium Calcium
2 Dimensional images acquired at different angles during SPECT are known as which of the following?
Projections
Which of the following represents the correct flow of blood through the circulatory system?
Pulmonary artery, pulmonary vein, left atria, left ventricle
What represents a full heart beat?
R to R interval
Gated SPECT acquires images based on which part of the ECG?
R wave
What is a PET radiopharmaceutical?
Rb-82
Which of the following is produced by a generator?
Rb-82 Chloride
Which of the following can be performed with Rb-82 Chloride?
Rest imaging and Stress imaging with pharmacological stress
Perfusion can be restored through a process called which?
Revascularization
TI-201 is produced by which method
Cyclotron
What imaging methods are used for MPI
SPECT and PET
The image below has a perfusion defect in which wall? (Left side)
Septal
The septal wall in the images below can be best described how?
Septal wall on both rest/stress is cold aka INFARCT
Which of the following is used for myocardial perfusion imaging?
Sestamibi Tetrofosmin TI-201
Which radiopharmaceutical are used for MPI
Sestamibi, tetrofosmin, TI-201
Which of the following is the parent isotope of Rb-82?
Sr-82
Which of the following is true regarding MPI imaging with Tl-201?
Stress imaging must be performed first and 2-4 mCi should be injected
Ischemia will show on which of the following myocardial perfusion images?
Stress only
Which of the following is a reversible state of contractile dysfunction that occurs after ischemia without necrosis?
Stunning
Which of the following must be avoided prior to cardiac sarcoid imaging?
Sugar
Which of the following is responsible for increasing heart rate?
Sympathetic nervous system
Which of the following best described when blood pressure is the highest?
Systole
What radiopharmaceutical is used for ERNA/RVG scans?
Tc-99m RBC
Which of the following is used for the radionuclide ventriculography?
Tc-99m RBC
Which of the following is known as Myoview?
Tetrofosmin
Why is it possible to begin imaging slightly earlier when using Tc-99m Tetrofosmin compared to Sestamibi?
Tetrofosmin has quicker liver and bowel clearance
The coronary arteries branch off of the ________
aorta
Which of the following tracers was previously used for cardiac sarcoidosis imaging?
Ga-67 Citrate
What is the preferred filter for processing Tl-201 chloride images?
Hanning
Tc-99m Sestamibi is used to image which of the following?
Heart Parathyroid Breast Tumor
Which of the following is true regarding SPECT imaging with Tl-201 chloride compared to Tc-99m Sestamibi?
Each stop should be acquired for longer when using Tl-201
Which of the following most likely indicates a myocardial infarction?
Elevated ST segment
The image below shows what radiopharmaceutical? (the brain is hot - the heart and kidneys are also hot)
F-18 FDG
Which of the following radiopharmaceuticals is used for imaging cardiac sarcoid?
F-18 FDG
Which of the following is a benefit of F-18 Flurpiridaz compared to the other PET MPI tracers?
F-18 has a long half-life so a cyclotron or generator is not required on site
Gating can be used during what studies?
First Pass MPI RVG
Which of the following occurs when electrical signals from the atria cannot travel to the ventricles?
heart block
Which of the following best describes ischemia?
mismatch defect
Tc-99m sestamibi accumulates where?
myocardium
What is the arrow pointing at? (arrow is near the right atrium/ventricle -- where the blood exits)
pulmonary artery
The brand name for Dipyridamole is ______
Persantine
Which of the following dosing schemes should be used for a one day MPI study, with Tc-99m Sestamibi, where rest is performed first?
10 mCi rest, 30 mCi stress
Which of the following is the half life of N-13?
10 mins
How long after injection of Lexiscan should the radiopharmaceutical be injected?
10-20 sec
Whats the energy level of Tc-99m Sestamibi
140 KeV
Whats the dose for ERNA/RVG scans?
15-30 mCi
What is the MPHR for a 60 yr old?
160
What is the half-life of O-15 water in minutes?
2
Approximately how long after injection of PYP are scans performed?
3 hours
A total rest/stress MPI can be performed with Rb-82 Chloride in about how long?
30 mins
An LVEF above which percent is considered normal?
50
For MPI, ejection fractions greater than which of the following is considered normal?
50%
Planar MPI images should be acquired for approximately how many counts?
500K
What is the energy in keV of all positron emitters?
511
Whats the half life of TI-201
73 hours
What is the half life of Rb-82 Chloride?
75 sec
Which of the following best describes the image below?
Polar map (has numbers)
Which of the following will block adenosine receptors?
Caffeine
Mechanical contraction of the heart is triggered when the concentration of which of the following increases in the cell?
Calcium
TI-201 is an analog of what
Potassium
Which of the following increases heart rate the most?
Dobutamine
How does N-13 Ammonia become trapped inside the myocardium?
Incorporated in the amino acid pool
Blood is delivered from the abdomen to the right atria by which of the following?
Inferior vena cava
F-18 FDG will accumulate in which of the following areas?
Inflammation and Sarcoidosis
A patient weighing 310 pounds arrives for day 1 of their 2 day MPI. At this facility, stress is performed on day 1. The patient informs the technologist that he had decaf coffee this morning. What is the best next steps the technologist should take?
Inject the patient for rest imaging with 30 mCi and schedule the stress for day 2
Which of the following pre-test likelihoods for coronary artery disease would warrant ordering a myocardial perfusion study?
Intermediate risk between 10-90% (Low risk is an ECG) (High risk is cath lab)
If planar imaging must be acquired for myocardial perfusion imaging, which of the following views should be acquired?
LAO, Left lateral and anterior
In the image below, which coronary artery supplies the wall the arrow is pointing to?
LCX
In addition to the heart, cardiac sarcoidosis also common affects which of the following organs?
Lungs
Tc-99m Sestamibi works by binding to which of the following?
Mitochondria
Which of the following is the thick middle layer of the heart wall?
Myocardium
Which of the following cells are the contractile cells of the heart?
Myocytes
Which of the following is imaged using a PET scanner?
N-13 Ammonia
Cleaning the skin before an ECG helps reduce what?
Noise
What is the prep for PYP scans?
None
When there is a problem with the atria, which of the following will be affects on the ECG?
P wave
Which of the following is false regarding PET MPI compared to SPECT MPI?
PET MPI takes much longer than SPECT MPI
Which of the following best describes a transmural infarction?
The infarct involves the entire thickness of the wall
Based on the image below, what can be said about this sarcoid scan? (Sestamibi is moderately normal looking - F-18 image looks cold on the bottom)
The scan is positive for cardiac sarcoid
Which of the following causes the highest effective dose equivalent to the patient?
Tl-201 Chloride
During exercise stress testing, the limb leads of a 12-lead ECG are moved to which of the following?
Torso
Which of the following is a contraindication for an exercise stress test?
Unstable angina
Which of the following requires defibrillation?
V-fib
Which test should be performed to determine if tissue that lacks blood flow will benefit from surgery to restore perfusion?
Viability study
TI-201 chloride is predominantly cleared through what
kidneys
Overfiltering with a Butterworth filter means that the images will be which of the following?
too smooth
Which of the following is located between the right atria and right ventricle?
tricuspid valve
