A nurse is teaching a client who has a newly documented latex allergy. Which of the following statements by the client indicates an understanding of the teaching?

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.

Choice A reason: Persistent anger about the hurricane is a PTSD symptom, reflecting emotional dysregulation and hyperarousal post-trauma. This ongoing distress, per DSM-5 criteria, warrants referral for mental health evaluation to address potential PTSD, making it a correct indicator for intervention.
Choice B reason: Realizing life will not return to normal is a realistic adjustment, not necessarily a PTSD symptom. Without additional distress indicators, this does not meet diagnostic criteria for PTSD, making it incorrect for requiring a referral in this context.
Choice C reason: Moving to higher ground is a practical response to reduce future risk, not a PTSD symptom. It reflects adaptive coping rather than psychological distress, so it does not warrant a referral for PTSD assessment, making it incorrect.
Choice D reason: Frequent nightmares about the hurricane are a hallmark PTSD symptom, classified as intrusive re-experiencing per DSM-5. This significant distress disrupts sleep and daily functioning, necessitating a referral for mental health evaluation, making it a correct choice.
Choice E reason: Feeling disconnected from others indicates emotional numbing, a PTSD avoidance symptom per DSM-5. This social withdrawal post-hurricane suggests significant psychological impact, warranting a referral for PTSD assessment to address underlying trauma, making it correct.