A nurse is caring for a client who has a pulmonary embolism and has a new prescription for enoxaparin 1.5 mg/kg/dose subcutaneously every 12 hours. The client weighs 245 lbs. How many mg should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Choice A Reason: This choice is incorrect because administering a vasodilator medication may lower the blood pressure and worsen the cerebral perfusion. A vasodilator medication is a drug that relaxes the blood vessels and reduces the resistance to blood flow. It may be used for clients who have hypertension, angina, or heart failure, but it does not help to reduce the intracranial pressure (ICP).

Choice B Reason: This choice is correct because elevating the head of the bed to 30° may help to improve the venous drainage and decrease the ICP. ICP is the pressure exerted by the brain tissue, cerebrospinal fluid (CSF), and blood within the cranial cavity. A normal ICP range is 5 to 15 mm Hg, and an elevated ICP (>20 mm Hg) can cause cerebral ischemia, herniation, or death. Therefore, positioning the client in a semi-Fowler's position (30° angle) or high- Fowler's position (60° to 90° angle) can facilitate breathing and prevent further complications.

Choice C Reason: This choice is incorrect because applying a cold compress to the forehead may cause vasoconstriction and increase the ICP. A cold compress is a device that applies cold temperature to a body part to reduce inflammation, pain, or swelling. It may be used for clients who have headaches, sprains, or bruises, but it does not help to reduce the ICP.

Choice D Reason: This choice is incorrect because decreasing the oxygen flow rate may cause hypoxia and worsen the cerebral ischemia. Hypoxia is a condition in which the body or a part of it does not receive enough oxygen. It may cause symptoms such as confusion, agitation, or cyanosis. Therefore, providing adequate oxygenation and ventilation is essential to maintain the brain function and prevent further damage.

Choice A Reason: This choice is incorrect because administering intravenous pain medication is not the priority action for a client who has sustained partial-thickness burns. Pain medication may be indicated for pain relief and comfort, but it does not address the potential life-threatening complications of burns such as shock, infection, or respiratory distress.

Choice B Reason: This choice is incorrect because drawing blood for a CBC count is not the priority action for a client who has sustained partial-thickness burns. A CBC count may be useful to monitor the hematological status and detect any signs of infection or anemia, but it does not address the immediate needs of the client

Choice C Reason: This choice is incorrect because inserting an indwelling urinary catheter is not the priority action for a client who has sustained partial-thickness burns. A urinary catheter may be necessary to measure the urine output and assess the renal function and fluid balance, but it does not address the most urgent problem of the client.

Choice D Reason: This choice is correct because inspecting the mouth for signs of inhalation injuries is the priority action for a client who has sustained partial-thickness burns. Inhalation injuries are caused by inhaling hot air, smoke, or toxic gases that damage the airway and lungs. They can cause airway obstruction, bronchospasm, pulmonary edema, or respiratory failure. Therefore, the nurse should inspect the mouth for signs such as soot, singed nasal hairs, burns on the lips or tongue, hoarseness, stridor, or wheezes. The nurse should also monitor the oxygen saturation and arterial blood gases to assess the oxygenation and ventilation status of the client.