A nurse is caring for a client who has an endotracheal tube (ET) and is on mechanical ventilation. Which of the following actions should the nurse take for a ventilator alarm due to an increase in peak airway pressure? (Select all that apply)

Choice A reason: A single light fixture along the sidewalk provides limited illumination, insufficient for comprehensive safety. Multiple, evenly spaced lights are needed to prevent falls, especially for older adults. Inadequate lighting increases risks of trips or assaults, indicating the client’s understanding of outdoor safety is incomplete and does not fully address home safety needs.
Choice B reason: Changing smoke alarm batteries annually ensures functional alarms, reducing fire-related mortality by 50%. Regular maintenance supports early smoke detection, enabling timely evacuation or response. This action reflects a strong understanding of fire safety, a critical home safety component, making it the best indicator of the client’s safety awareness.
Choice C reason: A small area rug at the front door poses a tripping hazard, particularly for those with mobility issues. Loose rugs can lead to falls, causing injuries like fractures. This finding suggests the client does not fully understand fall prevention, a key aspect of home safety, making it an incorrect indicator of safety awareness.
Choice D reason: Securing electrical cords under furniture risks fire hazards if cords are damaged or pinched, potentially causing electrical shorts. Cords should be secured along walls or with covers to prevent tripping without compromising safety. This indicates a misunderstanding of electrical safety, increasing fire or injury risks, and is not a correct safety measure.

Choice A reason: Bleeding time assesses platelet function, not warfarin’s anticoagulant effect. Warfarin inhibits vitamin K-dependent clotting factors, unrelated to platelets. Monitoring bleeding time does not reflect therapeutic anticoagulation levels, making it irrelevant for adjusting warfarin doses to prevent thrombosis or bleeding.
Choice B reason: Factor VIII, deficient in hemophilia A, is not affected by warfarin, which targets vitamin K-dependent factors (II, VII, IX, X). Measuring Factor VIII does not indicate warfarin’s efficacy, as it is unrelated to the drug’s mechanism, making it unsuitable for dose monitoring.
Choice C reason: aPTT monitors heparin’s effect on the intrinsic clotting pathway, not warfarin’s action on vitamin K-dependent factors. Warfarin requires INR for therapeutic monitoring, as aPTT is insensitive to its effects, making it inappropriate for assessing warfarin’s anticoagulation range in patients.
Choice D reason: INR standardizes prothrombin time, measuring warfarin’s effect on vitamin K-dependent clotting factors. It ensures therapeutic anticoagulation (e.g., INR 2-3), preventing thrombosis or bleeding. INR is the gold standard for warfarin monitoring, guiding dose adjustments for safe and effective therapy.