A patient experiences residual effects following an acute attack of Ménière's disease and receives a new prescription for an antihistamine. Which assessment finding indicates that the medication is effective?

1. The client is most likely experiencing compartment syndrome, which is a condition where increased pressure within a closed space compromises blood flow and tissue perfusion. Compartment syndrome can occur after a fracture, especially if a cast or splint is applied too tightly. Some of the signs and symptoms of compartment syndrome are severe pain, paresthesia, pallor, and pulselessness.
2. Two actions the nurse should take to address compartment syndrome are:
   • Elevate the extremity above the level of the heart to reduce swelling and improve venous return.
   • Remove the cast or loosen the dressing to relieve the pressure and restore blood flow. This may require notifying the physician or obtaining an order for bivalving or cutting the cast.
3. Two parameters the nurse should monitor to assess the client’s condition are:
   • Capillary refill of the affected fingers, which should be less than 3 seconds. A prolonged capillary refill indicates poor perfusion and tissue ischemia.
   • Blood pressure of the client, which should be maintained within normal limits. Hypotension can worsen the perfusion deficit and lead to tissue necrosis.

Choice A reason: Redness and edema noted at the incision site are signs of inflammation, which are normal in the early stages of wound healing. The nurse should monitor the site for signs of infection, such as purulent drainage, increased pain, or fever.

Choice B reason: Apical heart rate of 100 to 110 beats/minute is a sign of tachycardia, which may be caused by pain, anxiety, dehydration, or blood loss. The nurse should assess the client's vital signs, fluid status, and hemoglobin level, and administer pain medication as prescribed.

Choice C reason: High-pitched sound heard upon inspiration is a sign of stridor, which is a life-threatening emergency that indicates airway obstruction. The nurse should call for help, administer oxygen, and prepare for intubation or tracheostomy.

Choice D reason: Pain rating of 8 on a scale of 0 to 10 is a sign of severe pain, which may impair the client's recovery and increase the risk of complications. The nurse should administer pain medication as prescribed and use non-pharmacological methods to relieve pain, such as positioning, distraction, or relaxation techniques.