Cardiovascular quiz (1/3)

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employee training

nuclear medicine

Recommended age: 16 years old

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Joshua Liberty

United States

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Joshua Liberty

April 8, 2024

05:50

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Cardiovascular quiz (1/3)Online version Multiple choice and T/F by Joshua Liberty 1 The ECG T-wave specifies an electrical reset of the ventricles (repolarization) for the subsequent cardiac cycle. a True b False 2 Normal values of LVEF range from 50 to 75% and area bout 5% greater in women than men. a True b False 3 When processing a gated blood pool study, the tech places the background ROI over the spleen; the result will be a false high EF due to too much background being subtracted. a True b False 4 When processing a gated blood pool study, the tech draws too small a diastolic ROI; this produces a false low EF (counts are being missed). a True b False 5 When processing a gated blood pool study, the tech draws too small a systolic ROI; this produces a false high EF (not all counts are being accounted for, less counts in calculation). a True b False 6 Both tetrofosmin and sestamibi havea Tb in myocardium >5 hours. a True b False 7 Dipyridamole is perferred over adenosine because of shorter Tb. a True b False 8 The length of the cardiac cycle is usually recorded divided into 8 frames in a MUGA study. a True b False 9 Gated perfusion SPECT is usually recorded using 16 frames/cardiac cycle a True b False 10 A patient has decreased perfusion at rest; this is usually scar, from previous myocardial infarction. a True b False 11 A patient has decreased perfusion at stress with normal rest; this is indicative of ischemia. a True b False 12 A patient has decreased perfusion at rest and stress or a defect on both scans; this is indicates scar. a True b False 13 The equilibrium technique evaluates the heart at rest although a stress study is also achievable with either bicycle ergometer or dobutamine. a True b False 14 MUGA planar views are usually recorded in three views: ANT, 45 LAO, either left lateral or LPO. a True b False 15 The planar LAO view or best septal view is evaluated to calculate EF of the total counts in the LV at end systole and end diastole in a MUGA. a True b False 16 A First pass study need an injection of about 20-30 mCi of activity (dose) with a peak photon flux through a high-resolution collimator (Leap also used) of about 83,000 counts/second; MOL= Compartmental. a True b False 17 A First pass study needs a small volume bolus injection (<1mL) followed by a flush of 10 to 20 mL salise is used, and exteranl jugular vein is the prefereable site of injection. a True b False 18 R-L shunt study uses Tc99m MAA and scans WB to assess lung uptake vs. whole body regions using ROIs. a True b False 19 In depolarization, the myocardial cells relax. a True b False 20 In repolarization, the myocardial cells contract. a True b False 21 A 3.5 to 4.1 ratio is used if less than 2 hours between rest/stress tetrofosmin studies. a True b False 22 In a bull's eye display or polar plot, the apex is at the center and the basal slice is at the edges. a True b False 23 Cardiac amyloidosis may affect the way electrical signals move through the heart (conduction system). This can lead to abnormal heart beats (arrythmias) and faulty heart signals (heart block). a True b False 24 A cardiac amyloidosis study is completed: H/CL ratios of greater than or equal to 1 at one hour are classified as ATTR positive and ratios < 1 as ATTR negative. a True b False 25 Define myocardial ischemia. a Permanent injury to the myocardium caused by deficiency of blood supply as an effect of occluded arteries. b Decreased contractibility of the myocardium results in thinning of the muscle and dilation of the chambers. c Enlargement in the thickness of the myocardium. d A reversible state which occurs due to temporary deficiency in the amount of oxygen to the myocardium, frequently as a result of narrowing of a coronary artery. 26 The ______ is a small mass of specialized cells found in the walls of the right atrium near the entry of the superior vena cava; it functions as the impulse initiator for the rest of the heart. a SA node b AV node c Bundle of HIS d Righ Bundle Branch 27 Short axis cuts from? a RV to LV b Septum to LAT wall c INF to ANT wall d Apex to base 28 Vertical long axis (VLA) cuts from? a RV to LV b Septum to LAT wall c INF to ANT wall d Apex to base 29 Horizontal long axis (HLA) cuts from? a RV to LV b Septum to LAT wall c INF to ANT wall d Apex to base 30 The use of SPECT elliptical orbit or body contouring results in? a Better spatial resolution b Worse temporal resolution c Better temporal resolution d Less acquisition time e Less reconstruction time 31 An analysis is done on a MUGA that assumes the heart contracts in a specific pattern that resembels the waveform of a cosine function. This is called? a EF b Temporal processing c Amplitude image d Phase image 32 _____ in MUGA analysis represents the extent of regional wall moton regardless of the time of occurence within the cardiac cycle. a EF b Temporal processing c Amplitude image d Phase image 33 A patient has accidently had coffee 2 hours before a pharmacological MPI stress test was scheduled; the MD needs the study that day and shoul switch the study to:? a MUGA b Adenosine c Dobutamine d Dipyridamole 34 An MPI patient is imaged prone instead of supine; the reason may be? a Patient was not NPO; to avoid stomach counts. b To distinguish inferior wall defects from breast attenuation. c To distinguish anterior wall defects from diaphragm attenuation. d To distinguish inferior wall defects from diaphragm attenuation. 35 MUGA LVEF is calculated by? a (ED cts - ES cts)/ ES cts b (ED cts - ES cts) x 100 c (ES cts - ED cts)/ ED cts d (ED cts - ES cts)/ ED cts 36 On a MUGA, subtraction of too much background results ina falsely ____ EF. a High b Low c No affect d None of these Feedback 8 16 frames 19 Repolarization 20 Depolarization 36 Too much = Too high

Cardiovascular quiz (1/3)Online version

Multiple choice and T/F

by Joshua Liberty

The ECG T-wave specifies an electrical reset of the ventricles (repolarization) for the subsequent cardiac cycle.

True

False

Normal values of LVEF range from 50 to 75% and area bout 5% greater in women than men.

True

False

When processing a gated blood pool study, the tech places the background ROI over the spleen; the result will be a false high EF due to too much background being subtracted.

True

False

When processing a gated blood pool study, the tech draws too small a diastolic ROI; this produces a false low EF (counts are being missed).

True

False

When processing a gated blood pool study, the tech draws too small a systolic ROI; this produces a false high EF (not all counts are being accounted for, less counts in calculation).

True

False

Both tetrofosmin and sestamibi havea Tb in myocardium >5 hours.

True

False

Dipyridamole is perferred over adenosine because of shorter Tb.

True

False

The length of the cardiac cycle is usually recorded divided into 8 frames in a MUGA study.

True

False

Gated perfusion SPECT is usually recorded using 16 frames/cardiac cycle

True

False

A patient has decreased perfusion at rest; this is usually scar, from previous myocardial infarction.

True

False

A patient has decreased perfusion at stress with normal rest; this is indicative of ischemia.

True

False

A patient has decreased perfusion at rest and stress or a defect on both scans; this is indicates scar.

True

False

The equilibrium technique evaluates the heart at rest although a stress study is also achievable with either bicycle ergometer or dobutamine.

True

False

MUGA planar views are usually recorded in three views: ANT, 45 LAO, either left lateral or LPO.

True

False

The planar LAO view or best septal view is evaluated to calculate EF of the total counts in the LV at end systole and end diastole in a MUGA.

True

False

A First pass study need an injection of about 20-30 mCi of activity (dose) with a peak photon flux through a high-resolution collimator (Leap also used) of about 83,000 counts/second; MOL= Compartmental.

True

False

A First pass study needs a small volume bolus injection (<1mL) followed by a flush of 10 to 20 mL salise is used, and exteranl jugular vein is the prefereable site of injection.

True

False

R-L shunt study uses Tc99m MAA and scans WB to assess lung uptake vs. whole body regions using ROIs.

True

False

In depolarization, the myocardial cells relax.

True

False

In repolarization, the myocardial cells contract.

True

False

A 3.5 to 4.1 ratio is used if less than 2 hours between rest/stress tetrofosmin studies.

True

False

In a bull's eye display or polar plot, the apex is at the center and the basal slice is at the edges.

True

False

Cardiac amyloidosis may affect the way electrical signals move through the heart (conduction system). This can lead to abnormal heart beats (arrythmias) and faulty heart signals (heart block).

True

False

A cardiac amyloidosis study is completed: H/CL ratios of greater than or equal to 1 at one hour are classified as ATTR positive and ratios < 1 as ATTR negative.

True

False

Define myocardial ischemia.

Permanent injury to the myocardium caused by deficiency of blood supply as an effect of occluded arteries.

Decreased contractibility of the myocardium results in thinning of the muscle and dilation of the chambers.

Enlargement in the thickness of the myocardium.

A reversible state which occurs due to temporary deficiency in the amount of oxygen to the myocardium, frequently as a result of narrowing of a coronary artery.

The ______ is a small mass of specialized cells found in the walls of the right atrium near the entry of the superior vena cava; it functions as the impulse initiator for the rest of the heart.

SA node

AV node

Bundle of HIS

Righ Bundle Branch

Short axis cuts from?

RV to LV

Septum to LAT wall

INF to ANT wall

Apex to base

Vertical long axis (VLA) cuts from?

RV to LV

Septum to LAT wall

INF to ANT wall

Apex to base

Horizontal long axis (HLA) cuts from?

RV to LV

Septum to LAT wall

INF to ANT wall

Apex to base

The use of SPECT elliptical orbit or body contouring results in?

Better spatial resolution

Worse temporal resolution

Better temporal resolution

Less acquisition time

Less reconstruction time

An analysis is done on a MUGA that assumes the heart contracts in a specific pattern that resembels the waveform of a cosine function. This is called?

Temporal processing

Amplitude image

Phase image

_____ in MUGA analysis represents the extent of regional wall moton regardless of the time of occurence within the cardiac cycle.

Temporal processing

Amplitude image

Phase image

A patient has accidently had coffee 2 hours before a pharmacological MPI stress test was scheduled; the MD needs the study that day and shoul switch the study to:?

MUGA

Adenosine

Dobutamine

Dipyridamole

An MPI patient is imaged prone instead of supine; the reason may be?

Patient was not NPO; to avoid stomach counts.

To distinguish inferior wall defects from breast attenuation.

To distinguish anterior wall defects from diaphragm attenuation.

To distinguish inferior wall defects from diaphragm attenuation.

MUGA LVEF is calculated by?

(ED cts - ES cts)/ ES cts

(ED cts - ES cts) x 100

(ES cts - ED cts)/ ED cts

(ED cts - ES cts)/ ED cts

On a MUGA, subtraction of too much background results ina falsely ____ EF.

High

Low

No affect

None of these

Feedback

16 frames

Repolarization

Depolarization

Too much = Too high

Cardiovascular quiz (1/3)

Quiz

Download the paper version to play

Created by

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