Cardio PQ

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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


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