NREMT AEMT Level Quiz: Respiratory And Cardiac Medical Emergencies

What this quiz covers

This quiz focuses on Respiratory And Cardiac Medical Emergencies, giving you a quick way to practice the rules, question types, and explanations that matter most for NREMT AEMT Level.

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

Question 1

1. Increase the ventilation rate to bring the ETCO2 between 35-45 mmHg. (correct answer)
2. Insert a supraglottic airway and continue ventilating at the current rate.
3. Decrease the ventilation rate to allow for permissive hypercapnia.
4. Remove the BVM and apply a non-rebreather mask at 15 L/min.

Explanation: Post-ROSC care goals include optimizing ventilation and perfusion. An ETCO2 of 55 mmHg indicates hypoventilation (hypercarbia). The AEMT should assist ventilations with the BVM at a slightly faster rate (e.g., 10-12 breaths per minute) to achieve normocarbia, which is an ETCO2 between 35-45 mmHg. Avoiding both hyper- and hypoventilation is crucial for neurologic outcomes. His spontaneous rate of 8 is too slow.

Question 2

1. Reassess the patient's blood pressure. (correct answer)
2. Acquire and transmit a 12-lead ECG.
3. Confirm the patient does not have a headache.
4. Establish a second large-bore IV line.

Explanation: When managing patients receiving nitroglycerin, you must understand that this medication is a potent vasodilator that can cause significant hypotension, especially with repeated doses. The primary safety concern is preventing dangerous drops in blood pressure that could compromise perfusion to vital organs. Before administering any subsequent dose of nitroglycerin, you must reassess the patient's blood pressure. Answer A is correct because nitroglycerin's vasodilatory effects are cumulative, and each dose increases the risk of hypotension. Even though this patient's initial BP of 130/80 mmHg was adequate, the first dose may have lowered it, and a second dose could push it into a dangerous range. Standard protocols typically require a systolic BP above 90-100 mmHg before giving additional nitroglycerin. Answer B is incorrect because while a 12-lead ECG provides valuable diagnostic information, it's not a safety prerequisite for the second dose—the blood pressure check takes priority for immediate patient safety. Answer C is wrong because headaches, while a common side effect of nitroglycerin, don't contraindicate additional doses and aren't a safety concern compared to hypotension. Answer D is incorrect because a second IV line isn't required before giving sublingual nitroglycerin, and the question doesn't indicate any need for additional vascular access. Remember this pattern: whenever you're giving vasoactive medications like nitroglycerin, always check blood pressure first. Hypotension from nitroglycerin can be more immediately life-threatening than the chest pain you're treating, so safety assessments always come before therapeutic interventions.

Question 3

1. Administer nebulized albuterol and titrate oxygen to maintain adequate SpO2, reassessing frequently (correct answer)
2. Give oral aspirin and obtain a 12-lead ECG because wheezing suggests myocardial infarction
3. Withhold oxygen to prevent suppressing respiratory drive in an asthma patient
4. Administer IV morphine for anxiety and delay bronchodilator until calmer

Explanation: This question tests AEMT-level understanding of respiratory and cardiac medical emergencies. Respiratory and cardiac emergencies require quick assessment and intervention based on symptoms and history. Key skills include recognizing signs like wheezing, chest pain, or edema, and knowing protocol interventions. In the given scenario, a 30-year-old female with asthma flare and wheezing, emphasize the importance of bronchodilator therapy and oxygenation. The correct answer, A, is appropriate because it aligns with AEMT protocols for asthma exacerbation and addresses immediate patient needs. A common distractor, C, is incorrect due to risking hypoxic drive suppression myth, demonstrating a frequent misconception about oxygen in respiratory patients. To aid learning, teach AEMTs to prioritize interventions based on symptom severity and protocol scope. Encourage practice scenarios focusing on differential diagnoses and quick decision-making under pressure.

Question 4

1. Delay respiratory support until a chest X-ray confirms fluid overload
2. Give nebulized albuterol because crackles indicate bronchospasm and airway swelling
3. Administer a rapid IV fluid bolus to improve circulation and reduce pulmonary edema
4. Apply CPAP with high-flow oxygen if tolerated and monitor BP, SpO2, and mental status (correct answer)

Explanation: This question tests AEMT-level understanding of respiratory and cardiac medical emergencies. Respiratory and cardiac emergencies require quick assessment and intervention based on symptoms and history. Key skills include recognizing signs like wheezing, chest pain, or edema, and knowing protocol interventions. In the given scenario, an 80-year-old male with CHF and frothy sputum, emphasize the importance of positive pressure ventilation to alleviate pulmonary edema. The correct answer, D, is appropriate because it aligns with AEMT protocols for acute heart failure and addresses immediate patient needs. A common distractor, C, is incorrect due to worsening fluid overload, demonstrating a frequent misconception about volume status in CHF. To aid learning, teach AEMTs to prioritize interventions based on symptom severity and protocol scope. Encourage practice scenarios focusing on differential diagnoses and quick decision-making under pressure.

Question 5

1. Myocardial infarction because calf tenderness confirms coronary artery blockage
2. Asthma exacerbation because clear lungs always indicate reactive airway disease
3. CHF exacerbation because pleuritic pain strongly indicates fluid overload
4. Pulmonary embolism related to venous clot risk with sudden dyspnea and tachycardia (correct answer)

Explanation: This question tests AEMT-level understanding of respiratory and cardiac medical emergencies. Respiratory and cardiac emergencies require quick assessment and intervention based on symptoms and history. Key skills include recognizing signs like wheezing, chest pain, or edema, and knowing protocol interventions. In the given scenario, a 52-year-old male with sudden dyspnea post-flight and calf tenderness, emphasize the importance of suspecting venous thromboembolism. The correct answer, D, is appropriate because it aligns with AEMT protocols for pulmonary embolism and addresses immediate patient needs. A common distractor, B, is incorrect due to assuming clear lungs indicate asthma, demonstrating a frequent misconception about PE lung findings. To aid learning, teach AEMTs to prioritize interventions based on symptom severity and protocol scope. Encourage practice scenarios focusing on differential diagnoses and quick decision-making under pressure.

Question 6

1. Apply CPAP if tolerated and administer nebulized albuterol per protocol while monitoring SpO2 (correct answer)
2. Withhold bronchodilators until lung sounds clear to avoid masking worsening symptoms
3. Administer aspirin and obtain a 12-lead ECG because wheezing suggests cardiac ischemia
4. Perform rapid sequence intubation to secure the airway before giving oxygen

Explanation: This question tests AEMT-level understanding of respiratory and cardiac medical emergencies. Respiratory and cardiac emergencies require quick assessment and intervention based on symptoms and history. Key skills include recognizing signs like wheezing, chest pain, or edema, and knowing protocol interventions. In the given scenario, a 22-year-old female with severe wheezing and inability to speak more than 1-2 words, emphasize the importance of immediate bronchodilation and positive pressure ventilation. The correct answer, A, is appropriate because it aligns with AEMT protocols for acute asthma exacerbation and addresses immediate patient needs. A common distractor, C, is incorrect due to misinterpreting wheezing as cardiac ischemia without supporting symptoms, demonstrating a frequent misconception about differentiating respiratory versus cardiac causes. To aid learning, teach AEMTs to prioritize interventions based on symptom severity and protocol scope. Encourage practice scenarios focusing on differential diagnoses and quick decision-making under pressure.

Question 7

1. Provide oxygen, assist ventilations if needed, and consider CPAP if alert and tolerating (correct answer)
2. Insert a nasogastric tube to reduce airway pressure and improve oxygenation
3. Avoid any airway support until wheezing stops to prevent worsening bronchospasm
4. Perform surgical cricothyrotomy immediately because wheezing indicates upper airway obstruction

Explanation: This question tests AEMT-level understanding of respiratory and cardiac medical emergencies. Respiratory and cardiac emergencies require quick assessment and intervention based on symptoms and history. Key skills include recognizing signs like wheezing, chest pain, or edema, and knowing protocol interventions. In the given scenario, a 24-year-old male with asthma and accessory muscle use, emphasize the importance of advanced airway support if needed. The correct answer, A, is appropriate because it aligns with AEMT protocols for severe respiratory distress and addresses immediate patient needs. A common distractor, D, is incorrect due to assuming upper airway obstruction, demonstrating a frequent misconception about wheezing etiology. To aid learning, teach AEMTs to prioritize interventions based on symptom severity and protocol scope. Encourage practice scenarios focusing on differential diagnoses and quick decision-making under pressure.

Question 8

1. Presence of chest pain because it always indicates myocardial infarction
2. Clear lung sounds because they rule out any life-threatening respiratory problem
3. Normal blood pressure because it confirms the condition is not serious
4. Recent orthopedic surgery with sudden hypoxia and tachycardia, suggesting high PE risk (correct answer)

Explanation: This question tests AEMT-level understanding of respiratory and cardiac medical emergencies. Respiratory and cardiac emergencies require quick assessment and intervention based on symptoms and history. Key skills include recognizing signs like wheezing, chest pain, or edema, and knowing protocol interventions. In the given scenario, a 60-year-old female with sudden dyspnea post-surgery and hemoptysis, emphasize the importance of communicating PE risk factors. The correct answer, D, is appropriate because it aligns with AEMT protocols for suspected embolism and addresses immediate patient needs. A common distractor, B, is incorrect due to assuming clear lungs exclude issues, demonstrating a frequent misconception about PE presentation. To aid learning, teach AEMTs to prioritize interventions based on symptom severity and protocol scope. Encourage practice scenarios focusing on differential diagnoses and quick decision-making under pressure.

Question 9

1. Stop oxygen because drowsiness indicates oxygen toxicity in asthma patients
2. Encourage the patient to lie flat and breathe into a paper bag
3. Begin BVM ventilations with high-flow oxygen and prepare for rapid transport, reassessing often (correct answer)
4. Administer paralytics and perform endotracheal intubation as the first airway step

Explanation: This question tests AEMT-level understanding of respiratory and cardiac medical emergencies. Respiratory and cardiac emergencies require quick assessment and intervention based on symptoms and history. Key skills include recognizing signs like wheezing, chest pain, or edema, and knowing protocol interventions. In the given scenario, a 35-year-old male with asthma becoming drowsy, emphasize the importance of assisted ventilations for respiratory failure. The correct answer, C, is appropriate because it aligns with AEMT protocols for decompensating asthma and addresses immediate patient needs. A common distractor, D, is incorrect due to bypassing less invasive methods, demonstrating a frequent misconception about airway management escalation. To aid learning, teach AEMTs to prioritize interventions based on symptom severity and protocol scope. Encourage practice scenarios focusing on differential diagnoses and quick decision-making under pressure.

Question 10

1. Place supine to improve venous return and reduce the feeling of shortness of breath
2. Apply oxygen and consider CPAP while keeping the patient upright if tolerated (correct answer)
3. Administer albuterol nebulizer because crackles indicate lower airway constriction
4. Encourage the patient to walk to improve circulation before initiating oxygen therapy

Explanation: This question tests AEMT-level understanding of respiratory and cardiac medical emergencies. Respiratory and cardiac emergencies require quick assessment and intervention based on symptoms and history. Key skills include recognizing signs like wheezing, chest pain, or edema, and knowing protocol interventions. In the given scenario, a 78-year-old female with CHF and orthopnea, emphasize the importance of upright positioning and CPAP. The correct answer, B, is appropriate because it aligns with AEMT protocols for pulmonary edema and addresses immediate patient needs. A common distractor, A, is incorrect due to worsening dyspnea in supine position, demonstrating a frequent misconception about venous return in CHF. To aid learning, teach AEMTs to prioritize interventions based on symptom severity and protocol scope. Encourage practice scenarios focusing on differential diagnoses and quick decision-making under pressure.

Question 11

1. Apply CPAP with supplemental oxygen if tolerated and prepare for rapid transport (correct answer)
2. Administer a large fluid bolus to improve blood pressure and reduce crackles
3. Delay oxygen until after a full head-to-toe exam is completed
4. Give epinephrine IM because low oxygen saturation indicates anaphylaxis

Explanation: This question tests AEMT-level understanding of respiratory and cardiac medical emergencies. Respiratory and cardiac emergencies require quick assessment and intervention based on symptoms and history. Key skills include recognizing signs like wheezing, chest pain, or edema, and knowing protocol interventions. In the given scenario, an 83-year-old male with CHF and tiring dyspnea, emphasize the importance of CPAP for pulmonary edema. The correct answer, A, is appropriate because it aligns with AEMT protocols for heart failure decompensation and addresses immediate patient needs. A common distractor, B, is incorrect due to risking hypotension worsening, demonstrating a frequent misconception about fluids in low BP CHF. To aid learning, teach AEMTs to prioritize interventions based on symptom severity and protocol scope. Encourage practice scenarios focusing on differential diagnoses and quick decision-making under pressure.

Question 12

1. Give large-volume IV fluids to improve preload and raise oxygen saturation quickly
2. Apply high-flow oxygen and consider CPAP while preparing rapid transport and reassessment (correct answer)
3. Delay oxygen until a 12-lead ECG is obtained to confirm the rhythm and diagnosis
4. Administer epinephrine IM because crackles indicate bronchospasm with an allergic trigger

Explanation: This question tests AEMT-level understanding of respiratory and cardiac medical emergencies. Respiratory and cardiac emergencies require quick assessment and intervention based on symptoms and history. Key skills include recognizing signs like wheezing, chest pain, or edema, and knowing protocol interventions. In the given scenario, a 76-year-old female with CHF presenting orthopnea, edema, and crackles, emphasize the importance of non-invasive ventilation to reduce pulmonary congestion. The correct answer, B, is appropriate because it aligns with AEMT protocols for acute pulmonary edema and addresses immediate patient needs. A common distractor, A, is incorrect due to risking fluid overload in heart failure, demonstrating a frequent misconception about preload management in decompensated CHF. To aid learning, teach AEMTs to prioritize interventions based on symptom severity and protocol scope. Encourage practice scenarios focusing on differential diagnoses and quick decision-making under pressure.

Question 13

1. Apply CPAP and contact medical control to consider assisting with nitroglycerin. (correct answer)
2. Administer nebulized albuterol to address the crackles and respiratory distress.
3. Establish IV access and administer a 1 L fluid bolus to support circulation.
4. Assist ventilations with a BVM at a rate of 20 per minute to improve oxygenation.

Explanation: When you encounter a patient with acute pulmonary edema and severe hypertension, you're dealing with a cardiovascular emergency where the heart's inability to pump effectively causes fluid backup into the lungs. The combination of pink, frothy sputum, diffuse crackles, severe dyspnea, and hypertensive crisis creates a clear clinical picture requiring specific interventions. CPAP (Continuous Positive Airway Pressure) is the gold standard prehospital treatment for pulmonary edema because it increases intrathoracic pressure, reducing venous return and afterload while improving oxygenation. Nitroglycerin reduces preload by causing venodilation, decreasing the volume of blood returning to the already overwhelmed heart. This makes option A the most appropriate intervention. Option B is incorrect because albuterol is a bronchodilator used for bronchoconstriction, not pulmonary edema. The crackles here represent fluid in the alveoli, not airway constriction, so albuterol won't address the underlying problem. Option C represents dangerous thinking—this patient is in fluid overload, and adding more fluid would worsen the pulmonary edema and potentially cause complete cardiovascular collapse. Option D might seem reasonable, but BVM ventilation at 20/min is too aggressive and could worsen the condition by increasing intrathoracic pressure variability and potentially causing gastric distention. CPAP provides continuous, controlled pressure that's more beneficial. Remember: In pulmonary edema, think "get the fluid out and reduce the workload on the heart." CPAP accomplishes both goals simultaneously, making it your first-line treatment before considering medication interventions.

Question 14

1. Administer a 500 mL normal saline fluid bolus to treat potential dehydration.
2. Apply continuous positive airway pressure (CPAP) and assist with nitroglycerin administration. (correct answer)
3. Administer a nebulized albuterol treatment to address potential bronchospasm.
4. Place the patient in a supine position to improve venous return to the heart.

Explanation: The patient's signs and symptoms (orthopnea, rales, JVD, pedal edema) are classic for acute decompensated congestive heart failure (CHF) leading to cardiogenic pulmonary edema. CPAP is the primary treatment to improve oxygenation and reduce the work of breathing by stenting open alveoli. Nitroglycerin will cause vasodilation, reducing preload and afterload, which further alleviates the workload on the heart. These are the most appropriate AEMT-level interventions.

Question 15

1. Administer 324 mg of aspirin and assist with a second dose of nitroglycerin.
2. Administer 324 mg of aspirin but withhold further nitroglycerin. (correct answer)
3. Withhold all medications and establish an IV of normal saline run wide open.
4. Establish IV access and then assist with a second dose of nitroglycerin.

Explanation: Administration of aspirin is indicated for suspected acute coronary syndrome. However, nitroglycerin is contraindicated in patients who have taken erectile dysfunction medications like sildenafil within the past 24-48 hours due to the risk of profound, refractory hypotension. Therefore, the AEMT should administer aspirin but withhold any further nitroglycerin.

Question 16

1. Hyperglycemia; establish IV access and prepare to administer insulin per protocol.
2. Gastroenteritis; provide supportive care and transport to the hospital.
3. Silent myocardial infarction; administer aspirin and acquire a 12-lead ECG. (correct answer)
4. Anxiety reaction; attempt to calm the patient and reassess vital signs in 10 minutes.

Explanation: Diabetic, female, and elderly patients often present with atypical signs of an acute myocardial infarction (AMI). Symptoms like weakness, nausea, and back pain can be anginal equivalents. The AEMT must maintain a high index of suspicion for AMI. The most critical actions are to administer aspirin (an antiplatelet) and acquire a 12-lead ECG to look for evidence of ischemia or injury, while preparing for transport.

Question 17

1. Assist with one dose of sublingual nitroglycerin immediately.
2. Establish an IV of normal saline prior to considering nitroglycerin. (correct answer)
3. Administer a 250 mL normal saline fluid bolus to raise his blood pressure.
4. Place the patient in the Trendelenburg position and reassess blood pressure.

Explanation: This patient is experiencing chest pain suggestive of an AMI. While nitroglycerin is indicated, his blood pressure is borderline low (systolic < 100 mmHg). Administering nitroglycerin, a vasodilator, could cause profound hypotension. The most prudent course of action is to first establish IV access. This provides a route for fluid administration to treat potential hypotension if it occurs after nitroglycerin is given. It is a critical preparatory step before administering a vasodilator to a patient with borderline hemodynamics.

Question 18

1. Administer a 500 mL fluid bolus to correct the hypotension.
2. Assist with sublingual nitroglycerin to reduce cardiac workload.
3. Position for comfort, avoid fluid overload, and transport rapidly. (correct answer)
4. Apply CPAP to improve oxygenation and reduce preload.

Explanation: This patient is in cardiogenic shock, evidenced by signs of heart failure (crackles, JVD) combined with hypotension and signs of poor perfusion (cool, clammy skin). Administering a large fluid bolus can worsen the pulmonary edema. Nitroglycerin and CPAP are contraindicated in the setting of significant hypotension (systolic BP < 90-100 mmHg). The most appropriate action is to position the patient for comfort (typically semi-Fowler's to help breathing), avoid interventions that could worsen the condition, and transport rapidly to a cardiac center for advanced interventions.

Question 19

1. Establish an IV of normal saline and run it at a TKO rate. (correct answer)
2. Assist with the administration of sublingual nitroglycerin.
3. Discontinue CPAP due to the drop in blood pressure.
4. Administer a 250 mL fluid challenge to treat the hypotension.

Explanation: When managing CHF exacerbations with CPAP, you must balance respiratory support against hemodynamic effects. CPAP reduces preload and afterload, which helps offload the failing heart but can also decrease blood pressure in volume-depleted patients. Answer A is correct because establishing IV access with a TKO (to keep open) rate addresses multiple priorities simultaneously. The IV provides emergency medication access without adding significant fluid volume that could worsen pulmonary edema. A TKO rate (typically 10-30 mL/hr) maintains line patency while allowing you to monitor the patient's response to CPAP without fluid overload. Answer B is wrong because nitroglycerin would further decrease this patient's already low blood pressure (98/60 mmHg), potentially causing dangerous hypotension. Nitroglycerin reduces both preload and afterload, compounding CPAP's hypotensive effects. Answer C is incorrect because discontinuing CPAP would likely cause immediate respiratory deterioration. The patient's improved work of breathing and oxygen saturation (87% to 95%) demonstrate CPAP's effectiveness. The mild hypotension doesn't outweigh these respiratory benefits. Answer D is dangerous because a 250 mL fluid bolus could rapidly worsen pulmonary edema in a CHF patient. The audible rales indicate fluid overload is already present, and additional volume would likely cause immediate respiratory compromise. Study tip: In CHF with CPAP-induced hypotension, always prioritize respiratory improvement over mild BP drops. Establish IV access for emergency medications, but avoid fluid boluses that could flood already-compromised lungs.

Question 20

1. Administering aspirin and two doses of nitroglycerin for pain.
2. Acquiring a 12-lead ECG and transmitting it to the hospital.
3. Establishing two large-bore IVs and administering a fluid bolus.
4. Calm reassurance, high-flow oxygen, and rapid transport. (correct answer)

Explanation: When you encounter a patient with tearing chest pain radiating to the back plus a significant blood pressure difference between arms, you're looking at a classic presentation of aortic dissection - a true emergency where the aortic wall is literally splitting apart. The correct answer is D because aortic dissection requires immediate, gentle management. The blood pressure differential (50 mmHg systolic difference between arms) is a hallmark sign that the dissection may be affecting blood flow to one arm. Your priorities are minimizing stress on the damaged aorta through calm reassurance, ensuring adequate oxygenation, and getting to definitive surgical care as quickly as possible. Option A is dangerous because nitroglycerin can cause severe hypotension in dissection patients, potentially compromising perfusion to vital organs. Aspirin could worsen bleeding if surgery is needed. Option B wastes precious time - while a 12-lead might show changes, it won't change your field management and delays transport. The ECG findings are often normal or nonspecific in dissection. Option C is contraindicated because aggressive fluid administration and large-bore IV insertion can increase blood pressure and heart rate, putting additional stress on the weakened aortic wall and potentially extending the tear. Remember this pattern: tearing chest/back pain + blood pressure differential between arms = aortic dissection = gentle transport. Avoid anything that increases cardiac workload or blood pressure. Time is tissue when the aorta is dissecting, so your main job is supportive care and rapid, smooth transport to a facility capable of emergency vascular surgery.