Anaphy of Cardiovascular System

1. Which of the following is NOT a parameter commonly monitored by a patient monitor?

• mmHG

• l/min

• bpm

• ECG

What is the primary reason that ECG machines are equipped with electronic filters?

• To remove unwanted signal noise and artifacts from the heart's electrical recording.

• To increase the amplitude of the heart's electrical signal.

• To prevent the patient from receiving an electrical shock.

• To speed up the process of recording the ECG.

Which of the following is true?

• AV node delays the delivery of electric impulse through the heart

• Purkinje fibers are the pacemaker of the heart

• SA node enables rapid delivery of electric impulses in through the ventricles

• The conduction system of the heart doesn't have Purkinje fibers

A pulse oximeter uses _____ and red lights to measure oxygen saturation of hemoglobin?

Why do body parts appear more white in an X-ray image?

• They absorb more X-ray radiation.

• They reflect more X-ray radiation.

• They are transparent to X-ray radiation.

• They emit a special type of light that an X-ray detector can see.

Which of the following best describes the primary difference between an infusion pump and a syringe pump?

• An infusion pump delivers a small, precise volume of fluid, while a syringe pump delivers large volumes over a short period.

• They use fundamentally different technologies, with one being entirely mechanical and the other entirely electronic.

• An infusion pump is used for oral medication, while a syringe pump is used for intravenous medication.

• A syringe pump delivers fluid from a syringe, and an infusion pump delivers fluid from an IV bag.

Analog sphygmomanometers use what physiological concept to measure blood pressure?

• The Doppler effect to measure blood flow velocity.

• The plethysmographic method to detect changes in blood volume.

• The oscillometric method to detect arterial pulsations.

• The principle of auscultation, listening for Korotkoff sounds.

Which of the following statements is true regarding a 2D echo?

• It is a form of magnetic resonance imaging (MRI) that uses a strong magnetic field.

• It is an electrocardiogram (ECG) used to measure the heart's electrical activity.

• It is an ultrasound for the heart that produces a cross-sectional view.

• It is a type of X-ray used to create a static image of the heart.

What is the primary difference in how a traditional X-ray and a CT scan create an image?

• An X-ray is a single-projection, 2D image, while a CT scan takes multiple projections to create a 3D image.

• An X-ray is a cross-sectional view of soft tissue, while a CT scan is a detailed image of bone.

• A CT scan uses a radioactive tracer, while an X-ray does not.

• An X-ray uses sound waves, while a CT scan uses X-ray radiation.

What is the primary function of an ECG (electrocardiogram) in diagnosing heart conditions?

• Detecting physical blockages in the heart's arteries.

• Recording the heart's electrical activity to identify rhythm abnormalities.

• Providing a real-time, 3D image of the heart's chambers.

• Measuring a patient's blood pressure and heart rate.