Chapter 16 Cardiovascular Emergencies Flashcards
Deoxygenated blood from the body returns to the:
Right atrium
Angina pectoris occurs when:
Myocardial oxygen demand exceeds supply
The electrical impulse generated by the heart originates in the:
Sinoatrial node
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
What is a risk factor for AMI that cannot be controlled?
Family history
Signs and symptoms of a hypertensive emergency would most likely be delayed in patients who:
Have chronic hypertension
A 49-year-old male presents with an acute onset of crushing chest pain and diaphoresis. You should first:
Assess the adequacy of his respirations
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
A dissecting aortic aneurysm occurs when:
The inner layers of the aorta become separated
66-year-old female with a history of hypertension and diabetes presents with substernal chest pressure of two hours duration. Her blood pressure is 140/90 mmHg, 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
Nitroglycerin is contraindicated in patients who:
Have experienced a head injury
Have taken three doses
With a systolic blood pressure less than 100
On any ED medications
When preparing to obtain a 12 lead ECG, the LL and RL electrodes should be placed:
On the thighs or ankles
A patient tells you that he has and a left ventricular assist device (LVAD). What’s a condition you should suspect that he has experienced?
Acute myocardial infarction
The EMT should use an AED on a child between one month and eight years of age if:
Pediatric pads and an energy reducing device are available
Most AEDs are set up to adjust the voltage based on impedance, which is the:
Resistance of the body to the flow of electricity
After the AED has delivered a shock, the EMT should:
Immediately resume CPR
You and your partner arrived at the scene of a middle aged man who collapsed about five 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 an AED as soon as possible
Prior to attaching the AED to a cardiac arrest patient, the EMT should:
Dry the chest if it is wet