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Difficulty: MediumWeakening Arguments

To reduce patient wait times for critical care, a hospital network plans to replace its manual paper triage system with an automated algorithmic triage program. In a preliminary trial, the software analyzed patient vital signs and symptom checklists in under 15 seconds, compared to the 8 minutes required by triage nurses. Hospital management concludes that implementing this software across all its emergency departments will significantly decrease the average time critical-care patients wait before receiving treatment from an emergency physician. Which of the following, if true, most seriously weakens the hospital management's argument?

  1. A
    The automated triage software requires a high-speed server connection that occasionally experiences minor network latency during peak operating hours.
  2. B
    Emergency physicians reported that patients triaged by the software had more accurate preliminary diagnostic profiles than those triaged manually by nurses.
  3. Hospital safety rules require an attending emergency physician to manually verify and sign off on any algorithm-generated triage score before a patient can be transferred to a critical care bed.Answer
  4. D
    The introduction of the automated triage system will not reduce the average waiting time for non-urgent patients presenting with minor injuries.
  5. E
    Several triage nurses voiced concerns that automated software reduces human interaction during the initial intake consultation.

Answer

The argument is most seriously weakened by the statement that hospital safety rules mandate an attending emergency physician to manually verify and sign off on algorithm-generated triage scores before transferring patients to critical care.
The argument assumes that reducing triage time from 8 minutes to 15 seconds will decrease overall wait times for critical-care patients. The option pointing out mandatory physician sign-off before transfer introduces a procedural dependency on physician availability. Because physicians must clear the triage result before transfer occurs, the delay is simply shifted to physician sign-off availability, directly undermining the conclusion that overall wait times will decrease.

Step-by-Step Solution

1
Identify the argument's premises and conclusion
Premise: Automated software triages patients in 15 seconds vs. 8 minutes for nurses. Conclusion: Implementing software will reduce average wait times for critical-care patients before seeing a physician.
The conclusion relies on the unstated assumption that saving time at the initial triage intake stage directly translates into faster overall access to a physician.
2
Formulate the central assumption
The argument assumes no downstream procedural bottlenecks will offset or eliminate the time saved during the 15-second triage phase.
To weaken a plan-to-goal argument, an option must show that an unstated obstacle or side effect prevents the plan from achieving its stated goal.
3
Evaluate the choices for a weakening factor
Mandating physician sign-off on the automated score prior to transfer introduces a bottleneck tied directly to physician availability, undermining the time savings.
If patients cannot proceed until a busy physician signs off, the total wait time to receive critical care remains constrained by physician availability rather than initial triage speed.

Key Concept

Weakening Arguments - Uncovering Downstream Bottlenecks
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Weakening Arguments

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