Nokea
A medical nurse is aware of the need to screen specific patients for their risk of hyperglycemic hyperosmolar syndrome (HHS). In what patient population does hyperosmolar nonketotic syndrome most often occur?
- A. Patients who are obese and who have no known history of diabetes
- B. Patients with type 1 diabetes and poor dietary control
- C. Adolescents with type 2 diabetes and sporadic use of antihyperglycemics
- D. Middle-aged or older people with either type 2 diabetes or no known history of diabetes
Correct Answer: D
Rationale: HHS occurs most often in older people (50 to 70 years of age) who have no known history of diabetes or who have type 2 diabetes.
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An older adult patient with type 2 diabetes is brought to the emergency department by his daughter. The patient is found to have a blood glucose level of 623 mg/dL. The patients daughter reports that the patient recently had a gastrointestinal virus and has been confused for the last 3 hours. The diagnosis of hyperglycemic hyperosmolar syndrome (HHS) is made. What nursing action would be a priority?
- A. Administration of antihypertensive medications
- B. Administering sodium bicarbonate intravenously
- C. Reversing acidosis by administering insulin
- D. Fluid and electrolyte replacement
Correct Answer: D
Rationale: The overall approach to HHS includes fluid replacement, correction of electrolyte imbalances, and insulin administration. Antihypertensive medications are not indicated, as hypotension generally accompanies HHS due to dehydration. Sodium bicarbonate is not administered to patients with HHS, as their plasma bicarbonate level is usually normal. Insulin administration plays a less important role in the treatment of HHS because it is not needed for reversal of acidosis, as in diabetic ketoacidosis (DKA).
A 15-year-old child is brought to the emergency department with symptoms of hyperglycemia and is subsequently diagnosed with diabetes. Based on the fact that the childs pancreatic beta cells are being destroyed, the patient would be diagnosed with what type of diabetes?
- A. Type 1 diabetes
- B. Type 2 diabetes
- C. Noninsulin-dependent diabetes
- D. Prediabetes
Correct Answer: A
Rationale: Beta cell destruction is the hallmark of type 1 diabetes. Noninsulin-dependent diabetes is synonymous with type 2 diabetes, which involves insulin resistance and impaired insulin secretion, but not beta cell destruction. Prediabetes is characterized by normal glucose metabolism, but a previous history of hyperglycemia, often during illness or pregnancy.
A newly admitted patient with type 1 diabetes asks the nurse what caused her diabetes. When the nurse is explaining to the patient the etiology of type 1 diabetes, what process should the nurse describe?
- A. The tissues in your body are resistant to the action of insulin, making the glucose levels in your blood increase.
- B. Damage to your pancreas causes an increase in the amount of glucose that it releases, and there is not enough insulin to control it.
- C. The amount of glucose that your body makes overwhelms your pancreas and decreases your production of insulin.
- D. Destruction of special cells in the pancreas causes a decrease in insulin production. Glucose levels rise because insulin normally breaks it down.
Correct Answer: D
Rationale: Type 1 diabetes is characterized by the destruction of pancreatic beta cells, resulting in decreased insulin production, unchecked glucose production by the liver, and fasting hyperglycemia. Also, glucose derived from food cannot be stored in the liver and remains circulating in the blood, which leads to postprandial hyperglycemia. Type 2 diabetes involves insulin resistance and impaired insulin secretion. The body does not make glucose.
A patient has just been diagnosed with type 2 diabetes. The physician has prescribed an oral antidiabetic agent that will inhibit the production of glucose by the liver and thereby aid in the control of blood glucose. What type of oral antidiabetic agent did the physician prescribe for this patient?
- A. A sulfonylurea
- B. A biguanide
- C. A thiazolidinedione
- D. An alpha glucosidase inhibitor
Correct Answer: B
Rationale: Sulfonylureas exert their primary action by directly stimulating the pancreas to secrete insulin and therefore require a functioning pancreas to be effective. Biguanides inhibit the production of glucose by the liver and are in used in type 2 diabetes to control blood glucose levels. Thiazolidinediones enhance insulin action at the receptor site without increasing insulin secretion from the beta cells of the pancreas. Alpha glucosidase inhibitors work by delaying the absorption of glucose in the intestinal system, resulting in a lower postprandial blood glucose level.
A diabetes nurse educator is presenting the American Diabetes Association (ADA) recommendations for levels of caloric intake. What do the ADAs recommendations include?
- A. 10% of calories from carbohydrates, 50% from fat, and the remaining 40% from protein
- B. 10% to 20% of calories from carbohydrates, 20% to 30% from fat, and the remaining 50% to 60% from protein
- C. 20% to 30% of calories from carbohydrates, 50% to 60% from fat, and the remaining 10% to 20% from protein
- D. 50% to 60% of calories from carbohydrates, 20% to 30% from fat, and the remaining 10% to 20% from protein
Correct Answer: D
Rationale: Currently, the ADA and the Academy of Nutrition and Dietetics (formerly the American Dietetic Association) recommend that for all levels of caloric intake, 50% to 60% of calories come from carbohydrates, 20% to 30% from fat, and the remaining 10% to 20% from protein.