The majority of in-hospital cardiac arrests (IHCAs) are preceded by which of the following conditions?
A. Primary arrhythmia without warning
B. Respiratory failure or hypovolemic shock
C. Stroke
D. Acute myocardial infarction without preceding symptoms
Answer: B. Respiratory failure or hypovolemic shock
Explanation:
More than half of IHCAs result from respiratory failure or hypovolemic shock. Warning signs such as tachypnea, tachycardia, and hypotension often foreshadow these events, but they are sometimes missed in general wards.
Question 3
Where are patients most likely to experience unrecognized physiologic deterioration that leads to cardiac arrest?
A. Intensive care unit (ICU)
B. General wards
C. Operating room
D. Emergency department
Answer: B. General wards
Explanation:
General wards have higher patient-to-nurse ratios and less continuous monitoring compared to ICUs or procedural areas. This increases the risk of delayed recognition of deterioration.
Which of the following is a unique but valid criterion for activating a rapid response system, even without abnormal vital signs?
A. Patient reports chest pain
B. Family or staff member expresses concern
C. Patient refuses medication
D. Laboratory result shows mild anemia
Answer: B. Family or staff member expresses concern
Explanation:
Subjective concern—by nurses, physicians, or even family—can be enough to activate the rapid response system. This recognizes that clinical intuition often detects deterioration before vital signs confirm it.
Which component of a rapid response system is responsible for tracking outcomes and improving the process?
A. Event detection
B. Planned response arm (RRT/MET)
C. Quality monitoring
D. Administrative support
Answer: C. Quality monitoring
Explanation:
Quality monitoring ensures that the rapid response system is functioning effectively, identifies missed opportunities, and drives process improvement. Event detection and response activation identify the patient, while administrative support ensures resources and staff are available.
Which of the following respiratory rates would trigger a rapid response activation in an adult?
A. 20/min
B. 28/min
C. 34/min
D. 16/min
Answer: C. 34/min
Explanation:
A respiratory rate >30/min or <6/min is concerning for clinical deterioration. Normal or mildly abnormal rates (16–28/min) do not typically trigger rapid response activation.
Which heart rate should trigger consideration for rapid response activation?
A. 55/min
B. 72/min
C. 138/min
D. 35/min
Answer: D. 35/min
Explanation:
Rapid response criteria include HR <40/min or >140/min. A HR of 35/min represents severe bradycardia and requires urgent evaluation.
What is the systolic blood pressure threshold for adult rapid response activation?
A. <120 mmHg
B. <100 mmHg
C. <90 mmHg
D. <80 mmHg
Answer: C. <90 mmHg
Explanation:
Hypotension (SBP <90 mmHg) is an RRT trigger. Severe hypertension with symptoms can also warrant activation.
Which of the following is the most common cause of in-hospital cardiac arrest (IHCA)?
A. Primary ventricular arrhythmia
B. Respiratory failure or hypovolemic shock
C. Electrolyte abnormalities
D. Stroke
Answer: B. Respiratory failure or hypovolemic shock
Explanation:
More than half of IHCAs stem from respiratory failure or hypovolemic shock, often preceded by physiologic warning signs.
In which hospital location are patients most vulnerable to delayed recognition of deterioration leading to cardiac arrest?
A. Intensive care unit (ICU)
B. Emergency department
C. General wards
D. Operating room
Answer: C. General wards
Explanation:
On general wards, nurse-to-patient ratios are higher and monitoring is less frequent, increasing the risk of delayed recognition of deterioration.
Which of the following is an appropriate subjective criterion for activating a rapid response team?
A. Mild anemia on lab results
B. Nurse or family expresses concern
C. Patient misses one medication dose
D. Low-grade fever
Answer: B. Nurse or family expresses concern
Explanation:
Concern by staff or family is a recognized trigger, as intuition often detects deterioration before objective changes occur.
Which component of the rapid response system provides the clinical team that responds to patient deterioration?
A. Event detection arm
B. Planned response arm (RRT/MET)
C. Quality monitoring arm
D. Administrative support
Answer: B. Planned response arm (RRT/MET)
Explanation:
The planned response arm is the Rapid Response Team (RRT) or Medical Emergency Team (MET), which provides critical care expertise at the bedside.
Which component of a rapid response system is designed to identify early signs of deterioration and trigger a response?
A. Event detection arm
B. Planned response arm
C. Quality monitoring arm
D. Administrative support
Answer: A. Event detection arm
Explanation:
The event detection/response-triggering arm identifies when a patient meets criteria for rapid response activation.
What is the role of quality monitoring in a rapid response system?
A. Provides staff for bedside interventions
B. Tracks outcomes and missed opportunities
C. Assigns resources and equipment
D. Detects early physiologic changes
Answer: B. Tracks outcomes and missed opportunities
Explanation:
Quality monitoring ensures system effectiveness, evaluates missed cases, and informs improvements.
Why are intermittent manual vital signs on general wards a risk for delayed deterioration recognition?
A. Patients often refuse monitoring
B. Clinicians focus only on lab data
C. Vital sign changes can occur between checks
D. Electronic monitors always malfunction
Answer: C. Vital sign changes can occur between checks
Explanation:
On general wards, infrequent vital sign assessments mean deterioration (e.g., tachypnea, hypotension) may go unnoticed for hours, delaying intervention.
What is the primary goal of Rapid Response Teams (RRTs) or Medical Emergency Teams (METs)?
A. To provide code leadership during cardiac arrest
B. To provide early intervention and prevent IHCA
C. To replace bedside nursing assessments
D. To handle only respiratory emergencies
Answer: B. To provide early intervention and prevent IHCA
Explanation:
RRTs/METs are designed to identify and intervene early in deteriorating patients, preventing progression to in-hospital cardiac arrest (IHCA).
Which healthcare providers are commonly included in an RRT or MET?
A. Only physicians
B. Nurses, respiratory therapists, and critical care clinicians
C. Only paramedics
D. Laboratory technicians and pharmacists
Answer: B. Nurses, respiratory therapists, and critical care clinicians
Explanation:
Teams usually include ICU-trained staff such as nurses, physicians, and respiratory therapists with critical care skills.
RRTs and METs function in the hospital much like which prehospital service?
A. Emergency Medical Services (EMS)
B. Dialysis teams
C. Outpatient urgent care
D. Physical therapy services
Answer: A. Emergency Medical Services (EMS)
Explanation:
Like EMS in the field, RRTs/METs bring equipment, assess patients rapidly, and intervene in emergencies within the hospital.
Which of the following has been shown in published studies as a benefit of RRT/MET implementation?
A. Increased ICU length of stay
B. Decreased unplanned ICU transfers
C. Increased postoperative morbidity
D. Higher rates of unwanted interventions
Answer: B. Decreased unplanned ICU transfers
Explanation:
RRT/METs reduce unplanned ICU transfers, shorten ICU and hospital length of stay, reduce postoperative complications, and improve survival from cardiac arrest.
Although RRT/MET programs may not always reduce overall mortality, one additional benefit is:
A. Decreased use of antibiotics
B. Improved end-of-life care discussions
C. Fewer laboratory tests ordered
D. Reduced staffing needs
Answer: B. Improved end-of-life care discussions
Explanation:
RRTs/METs often initiate goals-of-care conversations before cardiac arrest, which can prevent unwanted resuscitation attempts in critically ill patients.
Which of the following is a documented benefit of rapid response systems?
A. Increased hospital length of stay
B. Increased ICU readmissions
C. Reduced postoperative morbidity and mortality
D. Higher incidence of IHCA
Answer: C. Reduced postoperative morbidity and mortality
Explanation:
Studies show reduced morbidity/mortality, shorter hospital stays, fewer unplanned ICU transfers, and improved survival rates with rapid response systems.
Which of the following is a barrier to successful rapid response system implementation?
A. Overstaffing in critical care
B. Fear of calling the team
C. Too much education about the process
D. Excessive administrative support
Answer: B. Fear of calling the team
Explanation:
Barriers include fear of calling, resistance from staff, inadequate resources, poor education, and cultural reluctance to escalate care.
Which of the following is required for sustaining an effective RRT/MET program?
A. Once-a-year refresher course only
B. Ongoing education, data collection, and feedback
C. No involvement from hospital administration
D. Allowing only physicians to activate the team
Answer: B. Ongoing education, data collection, and feedback
Explanation:
Effective programs need continuous education, data tracking, review, and feedback to maintain quality and cultural acceptance.
Implementing an RRT/MET requires which type of commitment from hospital administration?
A. Short-term, minimal funding
B. Long-term cultural and financial support
C. Delegating responsibility entirely to bedside nurses
D. Avoiding involvement in patient safety culture
Answer: B. Long-term cultural and financial support
Explanation:
Successful rapid response systems demand sustained resources, cultural change, and strong administrative commitment to patient safety.
Which diagnostic test is essential for classifying a patient with suspected ACS into STEMI or NSTE-ACS?
A. Chest X-ray
B. 12-lead ECG
C. Echocardiogram
D. Troponin blood test
Answer: B. 12-lead ECG
Explanation:
The 12-lead ECG is the primary tool for early classification into STEMI or NSTE-ACS, guiding time-sensitive management strategies.