The doctor orders dextrose 5% in water 1,000 mL to be infused over 8 hours. The IV tubing delivers 15 drops per milliliter. The nurse in charge should run the IV infusion at a rate of:

NOTE: Enter ONLY THE NUMBER DO NOT enter the unit of measurement

Let’s calculate the IV infusion rate step by step.

Step 1: Determine the total volume to be infused.

The total volume ordered is 1,000 mL.

Step 2: Determine the total time for the infusion.

The total time is 8 hours.

Step 3: Calculate the infusion rate in mL per hour.

Total volume (1,000 mL) ÷ Total time (8 hours) = 125 mL per hour.

Result: 125

Step 4: Determine the drop factor.

The IV tubing delivers 15 drops per milliliter.

Step 5: Calculate the infusion rate in drops per minute.

Infusion rate (125 mL per hour) × Drop factor (15 drops per mL) = 1,875 drops per hour.

Result: 1,875

Step 6: Convert the infusion rate to drops per minute.

Total drops per hour (1,875 drops) ÷ 60 minutes = 31.25 drops per minute.

Result: 31.25

Step 7: Round the result to the nearest whole number if necessary.

31.25 rounded to the nearest whole number is 31.

The nurse should run the IV infusion at a rate of 31 drops per minute.

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.