EMT-B Chapter 16 Quiz

Which of the following is NOT a common sign or symptom associated with malfunction of an implanted cardiac pacemaker? A. A rapid heart rate B. Syncope or dizziness C. Generalized weakness D. Heart rate less than 60 beats/min

A. A rapid heart rate

A patient tells you that he has a left ventricular assist device (LVAD). Which of the following conditions should you suspect that he has experienced? A. Acute myocardial infarction B. Uncontrolled hypertension C. Obstructive lung disease D. Thoracic aortic aneurysm

A. Acute myocardial infarction

Which of the following signs is commonly observed in patients with right-sided heart failure? A. Dependent edema B. Pulmonary edema C. Labored breathing D. Flat jugular veins

A. Dependent edema

You and your partner arrive at the scene of a middle-aged man who collapsed about 5 minutes ago. He is unresponsive, apneic, and pulseless. Bystanders are present, but have not provided any care. You should: A. begin high-quality CPR and apply the AED as soon as possible. B. perform two-rescuer CPR for 5 minutes and request ALS backup. C. have your partner perform CPR while you question the bystanders. D. immediately apply the AED pads and analyze his cardiac rhythm.

A. begin high-quality CPR and apply the AED as soon as possible.

Angina pectoris occurs when: A. myocardial oxygen demand exceeds supply. B. myocardial oxygen supply exceeds the demand. C. one or more coronary arteries suddenly spasm. D. a coronary artery is totally occluded by plaque

A. myocardial oxygen demand exceeds supply.

Most AEDs are set up to adjust the voltage based on the impedance, which is the: A. resistance of the body to the flow of electricity. B. distance between the two AED pads on the chest. C. direction that the electrical flow takes in the body. D. actual amount of energy that the AED will deliver.

A. resistance of the body to the flow of electricity.

The electrical impulse generated by the heart originates in the: A. sinoatrial node. B. atrioventricular node. C. coronary sinus. D. bundle of His.

A. sinoatrial node.

A 49-year-old male presents with an acute onset of crushing chest pain and diaphoresis. You should: A. obtain vital signs and a SAMPLE history. B. assess the adequacy of his respirations. C. administer up to three doses of nitroglycerin. D. administer up to 324 mg of baby aspirin.

B. assess the adequacy of his respirations.

A patient with atherosclerotic heart disease experiences chest pain during exertion because: A. tissues of the myocardium undergo necrosis secondary to a prolonged absence of oxygen. B. the lumen of the coronary artery is narrowed and cannot accommodate increased blood flow. C. the ragged edge of a tear in the coronary artery lumen causes local blood clotting and arterial narrowing. D. the coronary arteries suddenly spasm and cause a marked reduction in myocardial blood flow.

B. the lumen of the coronary artery is narrowed and cannot accommodate increased blood flow.

A 66-year-old female with a history of hypertension and diabetes presents with substernal chest pressure of 2 hours' duration. Her blood pressure is 140/90 mm Hg, her pulse is 100 beats/min and irregular, her respirations are 22 breaths/min, and her oxygen saturation is 92%. The patient does not have prescribed nitroglycerin, but her husband does. You should: A. obtain a SAMPLE history and contact medical control for advice. B. give her high-flow oxygen, attach the AED, and transport at once. C. administer oxygen, give her 324 mg of aspirin, and assess her further. D. give her one nitroglycerin and reassess her systolic blood pressure.

C. administer oxygen, give her 324 mg of aspirin, and assess her further.

After the AED has delivered a shock, the EMT should: A. transport the patient at once. B. re-analyze the cardiac rhythm. C. immediately resume CPR. D. assess for a carotid pulse.

C. immediately resume CPR.

When preparing to obtain a 12-lead ECG, the "LL" and "RL" electrodes should be placed: A. anywhere on the arms. B. on either side of the chest. C. on the thighs or ankles. D. on the lower abdomen.

C. on the thighs or ankles.

The EMT should use an AED on a child between 1 month and 8 years of age if: A. he or she is not breathing and has a weakly palpable pulse. B. special pads are used and the child has profound tachycardia. C. pediatric pads and an energy-reducing device are available. D. his or her condition is rapidly progressing to cardiac arrest.

C. pediatric pads and an energy-reducing device are available.

A dissecting aortic aneurysm occurs when: A. all layers of the aorta suddenly contract. B. the aorta ruptures, resulting in profound bleeding. C. the inner layers of the aorta become separated. D. a weakened area develops in the aortic wall.

C. the inner layers of the aorta become separated.

Nitroglycerin is contraindicated in patients: A. with a history of an ischemic stroke. B. with a systolic blood pressure less than 120 mm Hg. C. who have experienced a head injury. D. who have taken up to two doses.

C. who have experienced a head injury.

Prior to attaching the AED to a cardiac arrest patient, the EMT should: A. assess for a pulse for 20 seconds. B. perform CPR for 30 seconds. C. contact medical control. D. dry the chest if it is wet.

D. dry the chest if it is wet.

Risk factors for AMI that cannot be controlled include: A. lack of exercise. B. excess stress. C. hyperglycemia. D. family history.

D. family history.

Signs and symptoms of a hypertensive emergency would MOST likely be delayed in patients who: A. have had a stroke in the past. B. are older than 40 years of age. C. regularly take illegal drugs. D. have chronic hypertension.

D. have chronic hypertension.

A patient in cardiac arrest is wearing an external defibrillator vest, which is interfering with effective chest compressions. The EMT should: A. remove the battery from the monitor and leave the vest in place. B. perform ventilations only and allow the vest device to defibrillate. C. leave the battery attached to the monitor and remove the vest. D. remove the battery from the monitor and then remove the vest.

D. remove the battery from the monitor and then remove the vest.

Deoxygenated blood from the body returns to the: A. left ventricle. B. left atrium. C. right ventricle. D. right atrium.

D. right atrium