Question

1. after 10 minutes, brain damage is: a. nothing happens. the brain is fine. b. irreversible c. reversible d. none of the above 80. what chamber of the heart is the most muscular? a. left atrium b. right atrium c. left ventricle d. right ventricle medical - situational/judgement call 81. the way a patient is injured is often referred to as the: a. mechanism of injury b. mechanics of injury c. injury pattern d. energy transfer 82. how should an emt position their vehicle upon arrival at the scene? a. position the squad to leave the scene quickly with the patient b. position the squad closer to the scene c. position the squad to protect the scene d. position the squad a block away and walk up to the scene 83. you arrive on the scene of a private residence where an angry male who identified himself as your patients husband tells you to go away, “this is none of your business.” you recall from your emr class that your safety is always #1, top priority. what is the best course of action in this case? a. return to the ambulance and tell dispatch that the patient has refused care b. reason with the man and explain that the woman may need medical attention c. return to the ambulance and drive a safe distance away while calling for police backup d. barge past the man and help the woman in the home 84. you arrive on the scene of a private residence to find a patient with an altered mental status. you quickly scan the home. which of the following items will help point you in the right direction to find the cause of the altered mental status? a. unkept house with animal fur and dirt on the floor b. medications for high blood pressure, anxiety, and depression c. a smell of dirty clothes and cat feces d. dirty dishes stacked up in the sink

Explanation:

• For question 79: After 10 minutes, brain damage is irreversible as lack of oxygen for this long causes permanent cell - death.
• For question 80: The left ventricle is the most muscular chamber of the heart as it has to pump blood to the entire body against high resistance.
• For question 81: The way a patient is injured is called the mechanism of injury. It helps in understanding the nature and extent of the injury.
• For question 82: An EMT should position the vehicle to protect the scene to ensure safety of all involved and prevent further accidents.
• For question 83: When faced with a potentially dangerous situation, the best course of action is to return to the ambulance and drive a safe distance away while calling for police backup to ensure personal safety first.
• For question 84: Medications for high blood pressure, anxiety, and depression can potentially alter a patient's mental status.

Answer:

1. B. Irreversible
2. C. Left ventricle
3. A. Mechanism of injury
4. C. Position the squad to protect the scene
5. C. Return to the ambulance and drive a safe distance away while calling for police backup
6. B. Medications for high blood pressure, anxiety, and depression