A client with chronic lung disease is prescribed 40% oxygen via face mask. Which finding indicates to the nurse that the client is experiencing oxygen toxicity? Select all that apply.

Choice A Reason:

A pulse of 86 beats per minute is within the normal range for adults (60-100 beats per minute) and does not typically indicate a postoperative complication. While it is important to monitor vital signs, this pulse rate alone is not concerning unless accompanied by other abnormal findings.

Choice B Reason:

Hypoactive bowel sounds in all four quadrants can occur after surgery due to the effects of anesthesia and the surgical procedure itself. While it is important to monitor bowel sounds, hypoactivity is not immediately concerning unless it persists or is accompanied by other symptoms such as abdominal pain or distention. Therefore, this finding alone does not indicate an evolving complication.

Choice C Reason:

A blood pressure of 110/70 mm Hg is within the normal range for adults and does not typically indicate a postoperative complication. Blood pressure should be monitored regularly, but this reading alone is not concerning unless there are significant changes or other abnormal findings.

Choice D Reason:

Increasing restlessness is a concerning sign in the immediate postoperative period. It can indicate several potential complications, including pain, hypoxia, or the onset of delirium. Restlessness may also be an early sign of shock or other serious conditions that require prompt intervention. Therefore, this symptom warrants further assessment and immediate attention to determine the underlying cause and provide appropriate treatment.

Choice A: Nephropathy

Diabetic nephropathy is a common microvascular complication of diabetes mellitus. It is characterized by damage to the small blood vessels in the kidneys, leading to progressive kidney disease. The condition is often identified by the presence of protein in the urine (proteinuria) and can progress to end-stage renal disease if not managed properly. The primary mechanism involves hyperglycemia-induced damage to the glomeruli, the filtering units of the kidneys. This damage results in increased permeability and eventual scarring, impairing kidney function. Effective management of blood glucose levels and blood pressure is crucial in preventing or slowing the progression of diabetic nephropathy.

Choice B: Neuropathy

Diabetic neuropathy refers to nerve damage caused by chronic high blood sugar levels. It is another significant microvascular complication of diabetes. This condition can affect various types of nerves, including sensory, motor, and autonomic nerves. Symptoms may include pain, tingling, numbness, and loss of sensation, particularly in the extremities. Diabetic neuropathy can lead to severe complications such as foot ulcers and infections, which may necessitate amputation. The pathophysiology involves hyperglycemia-induced oxidative stress and inflammation, leading to nerve damage. Tight glycemic control and regular monitoring are essential in managing diabetic neuropathy.

Choice E: Retinopathy

Diabetic retinopathy is a leading cause of blindness among adults with diabetes. This microvascular complication involves damage to the small blood vessels in the retina, the light-sensitive tissue at the back of the eye. There are two main types: non-proliferative and proliferative retinopathy. Non-proliferative retinopathy is characterized by microaneurysms, hemorrhages, and exudates, while proliferative retinopathy involves the growth of new, fragile blood vessels that can bleed and cause retinal detachment. The primary cause is prolonged hyperglycemia, which damages the retinal blood vessels. Regular eye examinations and good glycemic control are vital in preventing and managing diabetic retinopathy.

Choice C: Peripheral Vascular Disease

Peripheral vascular disease (PVD) is not classified as a microvascular complication but rather a macrovascular one. It involves the narrowing or blockage of the blood vessels outside the heart and brain, primarily affecting the arteries in the legs. PVD is associated with atherosclerosis, where plaque builds up in the arterial walls, leading to reduced blood flow. Symptoms include leg pain, cramping, and ulcers. While PVD is a significant concern for individuals with diabetes, it is not considered a microvascular complication.

Choice D: Cerebral Vascular Disease

Cerebral vascular disease, which includes conditions such as stroke and transient ischemic attacks (TIAs), is also a macrovascular complication rather than a microvascular one. It involves the blood vessels supplying the brain and is primarily caused by atherosclerosis and hypertension. Diabetes increases the risk of cerebral vascular disease due to its association with other risk factors like high blood pressure and dyslipidemia. However, it is not classified as a microvascular complication.