Phiếu bài tập Kiểm soát nhiễm khuẩn và an toàn người bệnh có đáp án

An adult’s platelet count is 40,000/mm³ (40 × 10⁹/L). What does this mean?

1. AA raised platelet count with a risk of clots
2. BA normal platelet count for an adult
3. CA low count that only matters during surgery
4. DThrombocytopenia with a raised risk of bleeding

Several people develop Salmonella infection after eating the same undercooked chicken. Which mode of transmission is this?

1. AVehicle transmission
2. BVector-borne transmission
3. CDirect contact transmission
4. DAirborne transmission

Which vaccine is recommended for health care workers every year?

1. AMMR vaccine
2. BInfluenza vaccine
3. CHepatitis B vaccine
4. DTetanus vaccine

When is a prophylactic antibiotic usually given to prevent a surgical site infection?

1. AWithin about 60 minutes before the incision
2. BOne week before surgery
3. COnly if a fever develops after surgery
4. DThe day after surgery, once the wound is closed

A child has swallowed a button battery. Why is this urgent?

1. AIt is only harmful if several batteries are swallowed
2. BIt can burn through the lining of the esophagus within hours
3. CIt always passes through the gut without harm
4. DThe only risk is poisoning from heavy metals years later

A family member tells the nurse, “My father is not himself. Something is wrong.” The hospital has a family-activated rapid response system. What is correct?

1. AThe family should call emergency services from outside the hospital
2. BThe family must wait for the next scheduled ward round to raise the concern with a doctor
3. CThe family can call the rapid response team if they are worried and staff have not responded
4. DOnly doctors may call the rapid response team

A patient rescued from a house fire has a headache and confusion, but the pulse oximeter reads 99%. Why might this reading be misleading?

1. AConfusion and headache make pulse oximetry readings inaccurate in every patient
2. BThe reading is accurate, so carbon monoxide poisoning is ruled out
3. CPulse oximetry cannot tell carbon monoxide-bound hemoglobin from oxygen-bound hemoglobin
4. DPulse oximeters always read falsely low after any kind of smoke exposure

A patient after heart surgery has temporary epicardial pacing wires. Why do staff take special care with electrical safety?

1. ASmall currents can travel along the wires straight to the heart and cause arrhythmias
2. BPacing wires can only carry current coming from the pacemaker box itself
3. CElectrical safety only matters for patients who have permanent implanted pacemakers
4. DThe wires make the patient immune to electric shock