A nurse is caring for a client who is postoperative following knee arthroplasty and has a new prescription for enoxaparin 1mg/kg subcutaneous. The client weighs 185 lb. How many mg should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Explanation:
A. Promptly inform the primary provider:
Explanation: Compartment syndrome is a medical emergency that requires immediate intervention. If a nurse suspects compartment syndrome due to symptoms like severe unrelieved pain, absent pulses, and pale extremities, the most appropriate action is to promptly inform the primary healthcare provider. The provider can assess the situation, order necessary diagnostic tests, and potentially arrange for emergent interventions like fasciotomy to relieve compartment pressure.

B. Reassess the client's neurovascular status in 15 minutes:
Explanation: Waiting for 15 minutes to reassess the client's neurovascular status is not appropriate in this situation. Compartment syndrome can progress rapidly, leading to irreversible tissue damage within a short time frame. Delaying assessment and intervention can result in significant complications.

C. Warm the client's foot and determine whether circulation improves:
Explanation: Warming the foot is not appropriate in this context. Compartment syndrome is caused by increased pressure within the muscle compartment, leading to compromised circulation. Warming the foot will not address the underlying issue of elevated compartment pressure and can potentially worsen the condition by dilating blood vessels and increasing pressure further.

D. Reposition the client with the affected foot dependent:
Explanation: Repositioning the client with the affected foot dependent is contraindicated in compartment syndrome. Elevating the limb can worsen the condition by further restricting blood flow. The limb should be kept at or slightly below the level of the heart to maintain adequate perfusion until medical intervention can be initiated.

A. Urinary tract infection
The symptoms described, including recent mental status changes and periods of incontinence, are suggestive of a urinary tract infection (UTI) in an elderly individual. UTIs are common among older adults and can cause a variety of symptoms, including confusion, which is often the primary manifestation in the elderly population. Other symptoms can include urinary urgency, frequency, and incontinence.

B. Acute kidney failure - While acute kidney failure can cause changes in urination and mental status, it is less likely to be the primary cause of these symptoms in this scenario. UTI is a more common and immediate concern given the symptoms described.

C. Septic shock - Septic shock is a severe condition that occurs when an infection leads to a life-threatening drop in blood pressure. While septic shock can cause altered mental status, it is a critical condition that often presents with more dramatic symptoms and requires immediate intensive care management. The symptoms described are more suggestive of a UTI.

D. Urinary stasis - Urinary stasis refers to the slowing or cessation of urine flow. While urinary stasis can contribute to the development of UTIs, it is not a condition that would cause sudden and acute mental status changes and incontinence on its own. UTI is a more likely cause of the symptoms described.