Free NEX Critical Thinking Questions and Answers 1 — Questions and Answers
Question 1: A hospital memo states: 'To reduce the rate of hospital-acquired infections, all clinical staff must strictly adhere to the new 5-step handwashing protocol before and after every patient contact.' What is the primary assumption the hospital administration is making?
- Staff are not currently washing their hands enough.
- The new protocol is superior to the old one for preventing infections. (Correct answer)
- Patients have been complaining about staff hygiene.
- Hospital-acquired infections are the only safety issue at the hospital.
Correct answer: The new protocol is superior to the old one for preventing infections.
The administration's core belief is that there is a direct causal link between the action (implementing a new handwashing protocol) and the desired outcome (reducing infections). This assumes that better hand hygiene is an effective method for preventing the spread of pathogens in a hospital setting.
Question 2: A patient chart notes the following: fatigue, unintended weight loss, and persistent cough for the last month. Based only on this information, which of the following is the most reasonable inference?
- The patient has a serious illness like cancer or tuberculosis.
- The patient's symptoms require further medical investigation. (Correct answer)
- The patient is likely a smoker.
- The symptoms are probably caused by stress.
Correct answer: The patient's symptoms require further medical investigation.
The combination of symptoms is concerning and non-specific, meaning they could be caused by various conditions. Therefore, the most logical and safe conclusion is that a medical workup is necessary to determine the cause, rather than jumping to a specific diagnosis or dismissing the symptoms.
Question 3: A nurse manager argues, 'We should switch to 12-hour shifts because a study at City General Hospital showed it improved staff morale and reduced overtime costs.' Which of the following statements, if true, would most weaken the manager's argument?
- City General Hospital is in the same city as our hospital.
- Our hospital's nurses have also reported low morale.
- City General Hospital is a private hospital, while ours is a public one.
- City General Hospital has a much lower nurse-to-patient ratio than our hospital. (Correct answer)
Correct answer: City General Hospital has a much lower nurse-to-patient ratio than our hospital.
The manager's argument relies on the assumption that what worked at City General will work at their hospital. If City General has a significantly different and more favorable nurse-to-patient ratio, it introduces a critical variable that could account for the positive results, making the comparison invalid and weakening the argument.
Question 4: Premise 1: All patients who receive a full course of Antibiotic Z are cured. Premise 2: Mr. Jones was not cured. What can be logically concluded from these two premises?
- Antibiotic Z is ineffective.
- Mr. Jones did not receive a full course of Antibiotic Z. (Correct answer)
- Mr. Jones needs a higher dose of Antibiotic Z.
- Premise 1 must be false.
Correct answer: Mr. Jones did not receive a full course of Antibiotic Z.
This is a logical deduction known as modus tollens. If the first premise (if P, then Q) is true, then the absence of the outcome (not Q) must mean the absence of the condition (not P). Since Mr. Jones was not cured, he could not have received the full course of the antibiotic.
Question 5: A public health campaign poster reads: 'Our city has seen a 15% increase in gym memberships and a 10% decrease in heart disease cases over the past five years. Join a gym and protect your heart!' This campaign's conclusion relies on which of the following assumptions?
- Gym memberships are affordable for everyone.
- The increase in gym memberships is a direct cause of the reduction in heart disease. (Correct answer)
- No other health initiatives were started in the last five years.
- Heart disease is the leading cause of death in the city.
Correct answer: The increase in gym memberships is a direct cause of the reduction in heart disease.
The poster implies a causal relationship between the increase in gym memberships and the decrease in heart disease. For this to be plausible, it must assume that the people joining gyms are the same ones experiencing better health outcomes, and that their gym activity is the cause.
Question 6: A patient states, 'I'm not getting the flu shot. My cousin got one last year and she still got the flu.' Which statement best identifies the flaw in the patient's reasoning?
- The patient is disrespecting their doctor's medical opinion.
- The patient is making a generalization based on anecdotal evidence. (Correct answer)
- The patient is assuming that all flu shots are the same.
- The patient is confusing correlation with causation.
Correct answer: The patient is making a generalization based on anecdotal evidence.
The patient is using a single, personal story (anecdote) to draw a broad conclusion about the effectiveness of the flu vaccine. This is a logical fallacy because a single case does not disprove the overall statistical effectiveness of the vaccine for a large population.
Free NEX Critical Thinking Questions and Answers 1
A hospital memo states: 'To reduce the rate of hospital-acquired infections, all clinical staff must strictly adhere to the new 5-step handwashing protocol before and after every patient contact.' What is the primary assumption the hospital administration is making?