EMT chapter 16 quiz
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:
begin high-quality CPR and apply the AED as soon as possible
the electrical impulse generated by the heart originates in the:
sinoatrial node
Bradycardia
slow heart rate
When preparing to obtain a 12-lead ECG, the "LL" and "RL" electrodes should be placed:
on the thighs or ankles
The EMT should use an AED on a child between 1 month and 8 years of age if:
pediatric pads and an energy-reducing device are available
A dissecting aortic aneurysm occurs when:
the inner layers of the aorta become separated.
A patient with atherosclerotic heart disease experiences chest pain during exertion because:
the lumen of the coronary artery is narrowed and cannot accommodate increased blood flow
Nitroglycerin is contraindicated in patients:
with a systolic blood pressure less than 120 mm Hg.
tachycardia
fast heart rate
Artherosclerosis
hardening of the arteries
thromboembolism
A blood clot that has formed within a blood vessel and is floating within the bloodstream.
Which of the following is NOT a common sign or symptom associated with malfunction of an implanted cardiac pacemaker?
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?
Acute myocardial infarction
ischemia
Lack of blood supply
Cardiogenic shock can occur within 24 hours of a(n):
acute myocardial infarction
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:
administer oxygen, give her 324 mg of aspirin, and assess her further
When, for a brief period of time, heart tissues do not get enough oxygen, the pain is called:
angina
infarction
area of dead tissue
A 49-year-old male presents with an acute onset of crushing chest pain and diaphoresis. You should:
assess the adequacy of his respirations
Which of the following signs is commonly observed in patients with right-sided heart failure?
dependent edema
Signs and symptoms of a hypertensive emergency would MOST likely be delayed in patients who:
have chronic hypertension
Prior to attaching the AED to a cardiac arrest patient, the EMT should:
dry the chest if it is wet
Risk factors for AMI that cannot be controlled include:
family history
After the AED has delivered a shock, the EMT should:
immediately resume CPR
Angina pectoris occurs when:
myocardial oxygen demand exceeds the supply
At 0500 hours, you respond to the home of a 76-year-old man complaining of chest pain. Upon arrival, the patient states that he has been sleeping in the recliner all night due to indigestion, when the pain woke him up. He also tells you he has taken two nitroglycerin tablets. His vital signs are as follows: respirations 16 breaths/min, pulse 98 beats/min, bp 92/76 mm Hg. He is still complaining of chest pain. What actions should you take to intervene?
provide high-flow oxygen
the only veins that carry oxygenated blood
pulmonary veins
A patient in cardiac arrest is wearing an external defibrillator vest, which is interfering with effective chest compressions. the EMT should:
remove the battery from the monitor and then remove the vest
Most AEDs are set up to adjust the voltage based on the impedance, which is the:
resistance of the body to the flow of electricity
Deoxygenated blood from the body returns to the:
right atrium