NREMT Paramedic Level Quiz: Infectious Disease And Sepsis Management

What this quiz covers

This quiz focuses on Infectious Disease And Sepsis Management, giving you a quick way to practice the rules, question types, and explanations that matter most for NREMT Paramedic 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. A 12-lead electrocardiogram.
2. Tympanic temperature measurement.
3. Waveform capnography analysis.
4. Point-of-care blood glucose analysis. (correct answer)

Explanation: Both severe sepsis and DKA can present with shock and metabolic acidosis (leading to Kussmaul respirations and low ETCO2). The single most effective tool for differentiating between them in the prehospital setting is a blood glucose measurement. A glucose level of >250 mg/dL (and often much higher) is a hallmark of DKA, while in sepsis it may be normal, low, or mildly elevated.

Question 2

1. Administering a nebulized albuterol treatment to open the airways.
2. Applying high-flow oxygen via a non-rebreather mask to correct hypoxia. (correct answer)
3. Performing immediate deep oropharyngeal suctioning to clear sputum.
4. Obtaining a sputum sample for culture prior to leaving the scene.

Explanation: This patient is presenting with septic shock likely secondary to pneumonia. He is critically hypoxic with an SpO2 of 89%. While managing his shock with fluids is important, correcting the immediate life-threatening hypoxia is a top priority. A non-rebreather mask is the appropriate initial device to deliver high-flow oxygen.

Question 3

1. It provides definitive confirmation of a bacterial bloodstream infection.
2. It indicates severe liver dysfunction and an inability to clear metabolic waste.
3. It suggests significant tissue hypoperfusion and a shift to anaerobic metabolism. (correct answer)
4. It is a direct measure of the patient's systemic inflammatory response level.

Explanation: Lactate is a byproduct of anaerobic metabolism, which occurs when cells do not receive enough oxygen to meet their metabolic demands (i.e., shock). An elevated lactate level (typically > 2 mmol/L, and especially > 4 mmol/L) is a strong indicator of tissue hypoperfusion and is associated with increased mortality in septic patients.

Question 4

1. An acute exacerbation of underlying dementia.
2. Sepsis with an atypical, normothermic presentation. (correct answer)
3. An ischemic stroke affecting higher cognitive function.
4. Severe dehydration secondary to poor oral intake.

Explanation: Elderly patients often present with atypical signs of sepsis. They may not mount a febrile response. An acute change in mental status, combined with tachycardia and tachypnea, is highly suggestive of sepsis in this population, even without a fever. While the other options are possible, the constellation of findings makes sepsis the most likely life-threatening diagnosis.

Question 5

1. Global hypoperfusion and metabolic acidosis. (correct answer)
2. Inadequate respiratory effort causing CO2 retention.
3. Severe bronchoconstriction secondary to pneumonia.
4. Hyperventilation due solely to patient anxiety.

Explanation: In a septic patient, a low ETCO2 is an ominous sign. It reflects two processes: 1) systemic hypoperfusion (shock) reduces the amount of CO2 delivered back to the lungs for exhalation, and 2) the body's compensatory mechanism for metabolic (lactic) acidosis is to hyperventilate to 'blow off' CO2. Dismissing it as anxiety would be a critical error.

Question 6

1. Anaphylactic shock
2. Cardiogenic shock
3. Septic shock (correct answer)
4. Hypovolemic shock

Explanation: The combination of hypotension with warm, flushed skin (vasodilation) is classic for early distributive shock. The two-day history of abdominal pain and fever strongly suggests an infectious source, making septic shock the most likely diagnosis. Anaphylaxis is more acute and usually has allergic signs. Cardiogenic and hypovolemic shock typically present with cool, clammy skin.

Question 7

1. Apply a surgical mask to the patient and don N95 respirators before transport. (correct answer)
2. Immediately administer a 2-liter fluid bolus of normal saline to treat for shock.
3. Place the patient in a supine position and dim the ambulance lights for comfort.
4. Establish a large-bore IV and administer 2 mg of morphine for pain management.

Explanation: The patient's signs and symptoms are classic for bacterial meningitis, specifically meningococcal meningitis, which is highly contagious via respiratory droplets. The most critical immediate action is to institute infection control measures to protect the crew and prevent further spread. This includes masking the patient and having the crew wear N95 respirators. While treatment is vital, scene and provider safety is the first priority.

Question 8

1. Administer a 30 mL/kg bolus of 0.9% sodium chloride, reassessing frequently for signs of fluid overload. (correct answer)
2. Administer a 500 mL challenge of Lactated Ringer's and await improvement before administering more.
3. Administer a 250 mL bolus of 5% dextrose in water (D5W) to address dehydration and provide calories.
4. Withhold intravenous fluids until vasopressors can be initiated to avoid causing iatrogenic pulmonary edema.

Explanation: Current guidelines for septic shock recommend an initial fluid bolus of 30 mL/kg of an isotonic crystalloid (like 0.9% NaCl or LR). Given the patient is in shock without signs of pulmonary edema (clear lungs), aggressive fluid resuscitation is the first-line treatment. A smaller bolus is too conservative, D5W is inappropriate for resuscitation, and withholding fluids is incorrect.

Question 9

1. Hypovolemic shock from inadequate oral fluid intake.
2. Septic shock secondary to a catheter-associated urinary tract infection. (correct answer)
3. A transient ischemic attack causing acute neurological changes.
4. Catheter-associated bladder trauma causing internal bleeding.

Explanation: This is a classic presentation of urosepsis. Risk factors include advanced age, indwelling catheter, and residence in a long-term care facility. The signs of infection (cloudy urine) combined with systemic signs of hypoperfusion (hypotension, tachycardia, altered mental status) point directly to septic shock originating from the urinary tract.

Question 10

1. Administer an additional 1-liter fluid bolus of Lactated Ringer's solution.
2. Initiate a norepinephrine infusion and titrate to a mean arterial pressure of 65 mmHg. (correct answer)
3. Administer one ampule of sodium bicarbonate to correct the patient's metabolic acidosis.
4. Administer 40 mg of furosemide intravenously to prevent iatrogenic fluid overload.

Explanation: This patient is in refractory septic shock, meaning her hypotension is not responding to initial fluid resuscitation. The next step in management, per established guidelines, is the initiation of a vasopressor agent. Norepinephrine is the first-line vasopressor for septic shock. More fluid may be given, but vasopressors are now indicated. Bicarbonate is not routinely used, and furosemide is contraindicated.

Question 11

1. Temperature of 101.5°F (38.6°C), heart rate of 95 bpm, and a history of recent pneumonia.
2. Systolic blood pressure of 88 mmHg, respiratory rate of 24, and new-onset confusion. (correct answer)
3. ETCO2 of 28 mmHg, blood glucose of 180 mg/dL, and bilaterally clear lung sounds.
4. A productive cough, SpO2 of 92% on room air, and a documented history of COPD.

Explanation: A sepsis alert should be activated for patients at the highest risk of mortality who require immediate, resource-intensive care. The combination of hypotension (SBP < 100), tachypnea (RR > 22), and altered mental status meets multiple criteria for organ dysfunction (qSOFA) and signals septic shock. This presentation requires a coordinated team response upon hospital arrival.

Question 12

1. Administer a 160 mL bolus of normal saline over 20-30 minutes. (correct answer)
2. Administer a 80 mL fluid bolus and prepare for immediate intubation.
3. Rapidly administer a 250 mL fluid bolus and start a dopamine infusion.
4. Apply cooling packs to the groin and axilla to rapidly reduce the fever.

Explanation: This infant is in compensated septic shock. The standard initial fluid bolus for pediatric shock is 20 mL/kg of an isotonic crystalloid. For an 8 kg infant, this calculates to 8 kg * 20 mL/kg = 160 mL. Administering the correct weight-based bolus is a critical paramedic skill. 80 mL is too little, 250 mL is too much, and aggressive cooling is not the priority over fluid resuscitation.

Question 13

1. An acute hyperglycemic event such as Diabetic Ketoacidosis.
2. A severe allergic reaction to an insect bite on his leg.
3. Septic shock originating from an uncontrolled soft tissue infection. (correct answer)
4. A deep vein thrombosis causing a massive pulmonary embolism.

Explanation: The patient is clearly in shock. The localized findings of a hot, red, swollen leg are classic for cellulitis, a soft tissue infection. In a patient with diabetes, this can easily progress to a systemic infection (sepsis) and subsequent septic shock, which explains his hypotension, tachycardia, and altered mental status. This links the local infection to the systemic crisis.

Question 14

1. The patient's score is 3, indicating a high risk of poor outcome; activate a sepsis alert and transport rapidly. (correct answer)
2. The patient's score is 2, indicating possible sepsis; administer a 500 mL fluid bolus and reassess vital signs.
3. The patient's score is 1, indicating a low risk for sepsis; continue with routine monitoring during transport.
4. The qSOFA score cannot be accurately calculated in the prehospital setting; treatment should be based on SIRS criteria instead.

Explanation: The qSOFA score is based on three criteria: respiratory rate ≥ 22/min (met, 24), systolic BP ≤ 100 mmHg (met, 98), and altered mental status (GCS < 15) (met, 14). This patient meets all three criteria, for a score of 3. A score of 2 or more indicates a high risk of poor outcomes from sepsis. The most appropriate action is to notify the receiving hospital with a sepsis alert and initiate rapid transport.

Question 15

1. Inducing therapeutic hypothermia to improve neurologic outcome.
2. Obtaining a 12-lead ECG to rule out an ischemic cause of the arrest.
3. Continuing aggressive management of the underlying shock with fluids and vasopressors. (correct answer)
4. Administering sodium bicarbonate to reverse acidosis from the arrest.

Explanation: The cause of this patient's cardiac arrest was profound septic shock. While all post-arrest care elements are important, the patient will invariably re-arrest if the underlying cause—refractory shock—is not aggressively managed. The immediate priority is hemodynamic stabilization through the continued use of fluids and vasopressors to maintain organ perfusion.

Question 16

1. To normalize the patient's body temperature and heart rate to within normal limits.
2. To rapidly identify the specific infectious organism causing the systemic response.
3. To restore and maintain adequate cellular perfusion to the vital organs. (correct answer)
4. To prevent the development of widespread antibiotic resistance through early intervention.

Explanation: The ultimate goal of managing any shock state is to restore tissue perfusion. Fluids and vasopressors are used to increase blood pressure and cardiac output, not as an end in themselves, but as a means to deliver oxygen and nutrients to the cells and prevent organ failure. Normalizing vital signs is an indicator of success, but perfusion is the physiological goal.

Question 17

1. A significant decrease in cardiac output due to direct myocardial depression by endotoxins.
2. Widespread vasodilation and increased capillary permeability caused by inflammatory mediators. (correct answer)
3. A rapid loss of intravascular fluid volume from hemorrhage or severe dehydration.
4. A physical obstruction of the great vessels or the heart, preventing ventricular filling.

Explanation: Septic shock is a form of distributive shock. The primary cause of hypotension in its early phase is the release of massive amounts of inflammatory mediators, which cause profound systemic vasodilation and make capillaries leaky. This increases the size of the vascular container and allows fluid to shift into the interstitium, leading to a relative hypovolemia and a drop in blood pressure.

Question 18

1. The prehospital administration of protocol-driven, broad-spectrum antibiotics.
2. The use of appropriate PPE to prevent the spread of infection to other patients and providers.
3. A definitive medical or surgical intervention to physically eradicate the origin of the infection. (correct answer)
4. The strategy of titrating intravenous fluids and vasopressors to a target mean arterial pressure.

Explanation: 'Source control' refers to the physical elimination of the source of infection. Examples include draining an abscess, debriding an infected wound, removing an infected catheter, or surgically correcting a perforated bowel. While paramedics do not perform source control, understanding its importance is key to recognizing the need for rapid transport to a facility with surgical capabilities.

Question 19

1. A primary failure of the heart's pumping ability, resulting in a low cardiac output.
2. A critical reduction in the circulating blood volume due to external or internal fluid loss.
3. A physical blockage to blood flow within the cardiovascular circuit, such as a pulmonary embolism.
4. A profound decrease in systemic vascular resistance from widespread arterial and venous dilation. (correct answer)

Explanation: Distributive shock is defined by massive vasodilation, which dramatically increases the capacity of the vascular system. This leads to a profound drop in systemic vascular resistance (SVR), which is the primary cause of hypotension. Even with normal or increased cardiac output, the pressure is lost because the 'container' is too large.