A nurse is assessing a client who has a pneumothorax with a chest tube in place. For which of the following findings should the nurse notify the provider?

Choice A: Drainage of clear fluid from the ears is not an expected finding for a client who has an epidural hematoma, but rather a sign of a basilar skull fracture, which is a different type of head injury. The clear fluid is cerebrospinal fluid (CSF), which leaks from the brain through the fractured skull.

Choice B: Alternating periods of alertness and unconsciousness is an expected finding for a client who has an epidural hematoma, because it indicates a rapid increase in intracranial pressure (ICP) due to bleeding between the dura mater and the skull. The client may have a brief loss of consciousness at the time of injury, followed by a lucid interval, and then a rapid deterioration of mental status.

Choice C: Narrowing pulse pressure is not an expected finding for a client who has an epidural hematoma, but rather a sign of increased ICP due to any cause. Pulse pressure is the difference between systolic and diastolic blood pressure. As ICP rises, it compresses the brainstem and causes bradycardia and hypertension, resulting in a decreased pulse pressure.

Choice D: Extensive bruising in the mastoid area is not an expected finding for a client who has an epidural hematoma, but rather a sign of a basilar skull fracture, which is a different type of head injury. The bruising is also known as Batle's sign, and it occurs due to blood pooling behind the ear.

Choice A Reason: This choice is incorrect because oral hypoglycemic medications are not effective for treating DKA. Oral hypoglycemic medications are drugs that lower the blood glucose level by stimulating insulin secretion or increasing insulin sensitivity. They may be used for clients who have type 2 diabetes mellitus, but they do not work for clients who have type 1 diabetes mellitus or DKA.

Choice B Reason: This choice is correct because 0.9% sodium chloride IV bolus is an effective treatment for DKA. 0.9% sodium chloride is an isotonic solution that contains the same concentration of solutes as blood plasma. It may be used for clients who have fluid loss, dehydration, or shock. In DKA, the body breaks down fat for energy due to insulin deficiency or resistance, resulting in high levels of ketones and acids in the blood. This causes osmotic diuresis, dehydration, electrolyte imbalance, and metabolic acidosis. Therefore, administering 0.9% sodium chloride IV bolus can help to restore fluid volume and correct electrolyte imbalance.

Choice C Reason: This choice is incorrect because dextrose 5% in 0.45% sodium chloride is not indicated for treating DKA. Dextrose 5% in 0.45% sodium chloride is a hypertonic solution that contains more solutes than blood plasma. It may be used for clients who have hyponatremia, cerebral edema, or malnutrition, but it can worsen hyperglycemia and osmotic diuresis in clients who have DKA.

Choice D Reason: This choice is incorrect because glucocorticoid medications are not indicated for treating DKA. Glucocorticoid medications are drugs that mimic the effects of cortisol, a hormone that regulates stress response and inflammation. They may be used for clients who have allergic reactions, asthma, or autoimmune diseases, but they can increase blood glucose levels and inhibit insulin action in clients who have DKA.