Prior to attaching the AED to a cardiac arrest patient, the EMT should:
dry the chest off if it is wet.
You are dispatched to a residence for a 56-year-old male with an altered mental status. Upon arrival at the scene, the patient's wife tells you that he complained of chest pain the day before, but would not allow her to call EMS. The patient is semiconscious; has rapid, shallow respirations; and has a thready pulse. You should:
begin ventilatory assistance.
When the myocardium requires more oxygen:
the heart rate decreases significantly.
Narrowing of the coronary arteries due to a buildup of fatty deposits is called:
Common signs and symptoms of a hypertensive emergency include:
a bounding pulse, a severe headache, and dizziness.
Angina pectoris occurs when:
myocardial oxygen demand exceeds the supply.
The purpose of defibrillation is to:
stop the chaotic, disorganized contraction of the cardiac cells.
Upon arriving at the residence of a patient with a possible cardiac problem, it is MOST important to:
assess the scene for potential hazards.
Which of the following statements regarding nitroglycerin is correct?
Nitroglycerin usually relieves anginal chest pain within 5 minutes.
Acute coronary syndrome (ACS) is a term used to describe:
a group of symptoms that are caused by myocardial ischemia.
An acute myocardial infarction (AMI) occurs when:
myocardial tissue dies secondary to an absence of oxygen.
Deoxygenated blood from the body returns to the:
Prior to assisting a patient with his or her prescribed nitroglycerin, the EMT must:
obtain authorization from medical control.
When would it be MOST appropriate for a patient to take his or her prescribed nitroglycerin?
chest pain that does not immediately subside with rest
Which of the following veins is located inferior to the trunk?
The AED is MOST advantageous to the EMT because:
it delivers prompt defibrillation to patients with ventricular fibrillation.
When afterload increases:
it becomes harder for the ventricle to push blood through the blood vessels.
Defibrillator pads are placed on the patient's chest with one pad to the:
right of the upper sternum and the other pad just to the left and below the left nipple.
Which of the following is a major difference between angina pectoris and AMI?
Anginal pain typically subsides with rest.
Prompt transport of a patient with a suspected AMI is important because:
the patient may be eligible to receive thrombolytic therapy.
The myocardium receives oxygenated blood from the __________, which originate(s) from the __________.
coronary arteries, aorta
The EMT should use an AED on a child older than 1 year if:
pediatric pads and an energy-reducing device are available.
The right coronary artery supplies blood to the:
right ventricle and inferior wall of the left ventricle.
After assisting your patient with his or her nitroglycerin, you should:
reassess the blood pressure within 5 minutes to detect hypotension.
Cardiac output may decrease if the heart beats too rapidly because:
there is not enough time in between contractions for the heart to refill completely.
Which of the following is NOT a function of the sympathetic nervous system?
constriction of blood vessels in the muscles
The electrical impulse generated by the heart originates in the:
sinoatrial (SA) node.
A percutaneous transluminal coronary angioplasty (PTCA) restores blood flow to the ischemic myocardium by:
dilating the affected coronary artery with a small inflatable balloon.
Which of the following cardiac arrhythmias has the greatest chance of deteriorating into a pulseless rhythm?
Common side effects of nitroglycerin include all of the following, EXCEPT:
The main legal risk in using the AED is:
failing to deliver a shock when one is needed.
Your EMS team is performing CPR on a 60-year-old male in cardiac arrest. You connect the AED, push the analyze button, and receive a "no shock advised" message. You should:
perform CPR for 2 minutes and reassess
The head and brain receive their supply of oxygenated blood from the:
Blood that is ejected from the right ventricle:
flows into the pulmonary arteries.
Which of the following medications is commonly given to patients with chest pain to prevent blood clots from forming or getting bigger?
You are assessing a 49-year-old man who complains of chest pressure that began the night before. He is conscious, but anxious, and tells you he has a history of angina and hypertension. After applying high-flow oxygen, you expose his chest to auscultate his lungs and note that he has a nitroglycerin patch on his right upper chest. His skin is cool and pale, his blood pressure is 78/50 mm Hg, and his pulse is 110 beats/min and irregular. You should:
remove the nitroglycerin patch, place him in a supine position and elevate his lower extremities, and prepare for immediate transport.
In contrast to the sympathetic nervous system, the parasympathetic nervous system:
slows the heart and respiratory rates.
When documenting a patient's description of his or her chest pain or discomfort, the EMT should:
use the patient's own words.
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:
perform five cycles of high-quality CPR and then apply the AED.
In contrast to AMI, a dissecting aortic aneurysm:
often presents with pain that is maximal from the onset.