Mixed Deck — All CET Topics Flashcards

A CET discovers that echo images are being stored without encryption on a shared network drive accessible outside the hospital. The appropriate regulatory action is to:

Answer: Report the security gap to the Privacy Officer or IT security team immediately

Identified security vulnerabilities must be reported through proper internal channels—the Privacy or Security Officer—who will initiate the required risk assessment.

On echocardiography, which pattern of ventricular filling is most consistent with constrictive pericarditis?

Answer: Respiratory variation in mitral inflow velocities >25%

Constrictive pericarditis characteristically shows >25% respiratory variation in mitral inflow E velocity due to ventricular interdependence.

Using the simplified Bernoulli equation, what is the pressure gradient across a valve if the peak velocity is 4 m/s?

Answer: 64 mmHg

The simplified Bernoulli equation is ΔP = 4V², so ΔP = 4 × (4)² = 4 × 16 = 64 mmHg.

What is a corrective action in Certified Echocardiography Technician quality systems?

Answer: A systematic response to eliminate causes of nonconformity and prevent recurrence

Corrective actions address root causes of quality issues to prevent recurrence, going beyond temporary fixes to create lasting improvement.

Which frequency range is typically used for adult transthoracic echocardiography?

Answer: 2-5 MHz

For adult transthoracic echocardiography, a frequency range of 2-5 MHz is typically used. Lower frequencies offer greater penetration depth, which is necessary to visualize the heart through the chest wall in adults. While higher frequencies provide better resolution, they have limited penetration, making the 2-5 MHz range optimal for balancing depth and image quality in adult studies.

Why is documentation important in CET risk management?

Answer: It creates an audit trail and demonstrates due diligence

Documentation in risk management creates accountability, supports decision-making, and demonstrates professional due diligence.

What is the most effective communication approach for CET professionals?

Answer: Adapting communication style to the audience while maintaining accuracy

Effective CET professionals adapt their communication style to the audience's needs and knowledge level while ensuring accuracy and completeness.

What separates the left and right sides of the heart?

Answer: The septum

The septum is a muscular wall that divides the heart into its left and right sides. This crucial structure prevents the mixing of oxygenated blood (from the left side) with deoxygenated blood (from the right side). The interventricular septum separates the ventricles, and the interatrial septum separates the atria, ensuring efficient blood circulation.

Which Doppler method is the standard for estimating pulmonary artery systolic pressure non-invasively?

Answer: Tricuspid regurgitation peak velocity plus estimated right atrial pressure

PASP = 4(TRV)² + estimated RAP; the peak TR velocity is squared and multiplied by 4 (Bernoulli) and added to estimated right atrial pressure.

In a patient with Marfan syndrome, which echocardiographic measurement is most critical for surgical planning?

Answer: Aortic root diameter at the sinuses of Valsalva

Aortic root diameter at the sinuses of Valsalva is the key measurement guiding surgical intervention in Marfan syndrome, with >4.5cm typically indicating surgery.

Libman-Sacks endocarditis on echocardiography is most commonly associated with which condition?

Answer: Systemic lupus erythematosus (SLE)

Libman-Sacks endocarditis consists of sterile, small, wartlike vegetations on both sides of valve leaflets and is pathognomonic of systemic lupus erythematosus.

Which of the following best describes the advantage of real-time three-dimensional (3D) echocardiography over conventional 2D imaging?

Answer: Volumetric acquisition allowing visualization of complex anatomy without geometric assumptions

3D echocardiography acquires a pyramidal volume of data, enabling accurate measurement of chamber volumes and valve morphology without relying on geometric models.

Which type of transducer is most appropriate for performing a standard adult transthoracic echocardiogram (TTE)?

Answer: Phased array low-frequency transducer

Phased array transducers (typically 2–5 MHz) are designed for cardiac imaging, providing the small footprint needed to image between ribs.

Which echocardiographic view best visualizes all four cardiac chambers simultaneously?

Answer: Apical four-chamber view

The apical four-chamber view displays both atria and both ventricles as well as the mitral and tricuspid valves simultaneously.

What is the primary purpose of a quality assurance (QA) program in an echocardiography laboratory?

Answer: To systematically monitor and improve the accuracy and consistency of echo studies

QA programs provide structured oversight to identify deficiencies and drive continuous improvement in image quality and diagnostic accuracy.

An echocardiography technician discovers a documentation error in a previously submitted report. What is the appropriate action?

Answer: Correct the error through proper channels with an addendum noting the change

Medical record corrections must follow institutional policy, typically using an addendum with a date, time, and reason for the change.

A CET notices that Doppler spectral waveforms on the screen appear 'filled in' rather than hollow. Which setting most likely needs adjustment?

Answer: Wall filter is set too low, passing low-velocity clutter into the spectrum

A wall filter that is too low allows low-velocity wall motion and clutter to appear within the spectral display, filling in the normally dark center of the waveform.

Which approach best demonstrates professional competency in CET practice?

Answer: Integrating education, experience, and evidence-based decision making

True competency in CET practice comes from integrating formal education with practical experience and using evidence to guide decisions.

During 3D transesophageal echocardiography (TEE), a sonographer uses 'en face' cropping to display the mitral valve. From which anatomical perspective is the standard surgical view displayed?

Answer: From the left atrium looking toward the ventricle

The standard surgical 'en face' mitral valve view is presented from the left atrial perspective, mimicking what a surgeon sees when operating on the valve.

Which digital tool allows a cardiologist to remotely review and annotate an echocardiogram without being physically present in the echo lab?

Answer: Tele-echocardiography platform with secure PACS web viewer

Tele-echocardiography uses secure web-enabled PACS viewers that comply with HIPAA to allow remote reading, annotation, and reporting of echo studies.