Medical Knowledge Quiz

When lifting a patient on a backboard, what technique is recommended to reduce the risk of injury?

• Bending at the waist and keeping legs straight

• Maintaining a narrow stance for better balance

• Keeping the back straight and lifting with your legs

• Holding the backboard far away from your body

Which cardiac cells are primarily responsible for the heart's automaticity?

• Myocardial contractile cells

• Purkinje fibers

• Pacemaker cells

• Bundle of His

Which of the following best defines hypoxia?

• A decrease in blood volume

• An excess of carbon dioxide in the blood

• An inadequate supply of oxygen to the tissues

• A buildup of lactic acid in the muscles

The physician orders dopamine 400 mg in 250 mL of D5W to be infused at 5 mcg/kg/min for a patient weighing 70 kg. What is the correct IV flow rate in mL/hr?

• 13 mL/hr

• 25 mL/hr

• 30 mL/hr

• 40 mL/hr

Which of the following is the primary indication for inserting a nasopharyngeal airway (NPA)?

• Complete airway obstruction

• Semi-conscious or unconscious patient with an intact gag reflex

• Severe facial trauma

• Cardiac arrest with no breathing effort

You are triaging a 45-year-old female involved in a multi-vehicle collision. She is conscious, has a respiratory rate of 32, and is unable to follow commands. What triage category would you assign her?

• Green

• Black

• Yellow

• Red

A physician prescribes magnesium sulfate 2 g in 100 mL of NS to be infused over 30 minutes. What is the correct IV flow rate in mL/hr?

• 100 mL/hr

• 150 mL/hr

• 200 mL/hr

• 250 mL/hr

A patient presents with red, painful skin and no blistering after accidentally touching a hot pan. What type of burn is this?

• Superficial

• Partial-thickness

• Full-thickness

• Electrical burn

Which part of the ECG represents atrial depolarization?

• QRS complex

• T wave

• P wave

• ST segment

Which of the following best describes ventricular fibrillation on an ECG?

• Regular rhythm with narrow QRS complexes

• Irregular, chaotic waveform with no identifiable P waves or QRS complexes

• Sawtooth pattern with consistent atrial waves

• Prolonged PR interval with occasional dropped QRS complexes