Nursing Elites

1. What is the most common cause of HHNS?

• A. Insulin overdose
• B. Removal of the adrenal gland
• C. Undiagnosed, untreated hyperpituitarism
• D. Undiagnosed, untreated diabetes mellitus

Correct answer: D

Rationale: The correct answer is D: Undiagnosed, untreated diabetes mellitus. Hyperosmolar hyperglycemic nonketotic syndrome (HHNS) is most commonly caused by undiagnosed and untreated diabetes mellitus. Insulin overdose (Choice A) is not a typical cause of HHNS; it is more related to hypoglycemia. Removal of the adrenal gland (Choice B) can lead to adrenal insufficiency but is not a common cause of HHNS. Undiagnosed, untreated hyperpituitarism (Choice C) is not a usual cause of HHNS; it is more related to pituitary hormone imbalances rather than hyperglycemia.

2. What percentage of term newborns have a congenital heart disease due to environmental risk factors such as maternal alcoholism or drug ingestion?

• A. 2% to 4%
• B. 10% to 20%
• C. 5% to 10%
• D. 7% to 9%

Correct answer: A

Rationale: The correct answer is A: 2% to 4%. According to research, 2% to 4% of term newborns have congenital heart disease due to environmental risk factors such as maternal alcoholism or drug ingestion. Choices B, C, and D provide percentages that are higher than the actual prevalence of congenital heart disease in newborns caused by environmental factors, making them incorrect.

3. Which of the following is considered normal for the neonate?

• A. Chest Circumference: 10 to 13 inches
• B. Length: 16 to 22 inches
• C. Weight: 1,500 to 4,000 g
• D. Head Circumference: 12.6 to 14.5 inches

Correct answer: D

Rationale: A normal head circumference for a neonate typically falls within the range of 12.6 to 14.5 inches. Choice A is incorrect because the chest circumference for a neonate is usually smaller. Choice B is incorrect as the length of a neonate is typically shorter. Choice C is incorrect as the weight of a neonate is usually measured in grams and falls within a different range.

4. Jansen is receiving metformin (Glucophage). What will be the best plan of the nurse with regard to patient education with this drug? Select one that does not apply.

• A. It stimulates the pancreas to produce more insulin.
• B. It must be taken after meals.
• C. It decreases sugar production in the liver.
• D. It inhibits absorption of carbohydrates.

Correct answer: A

Rationale: The correct choice that does not apply is A. Metformin does not stimulate the pancreas to produce more insulin; instead, it works by decreasing sugar production in the liver, inhibiting carbohydrate absorption, and reducing insulin resistance. It is recommended to take metformin with meals to reduce gastrointestinal side effects. Option B is incorrect as metformin is usually taken with meals. Option D is also incorrect as metformin does not inhibit the absorption of carbohydrates.

5. Which of the following differentiates ulcerative colitis from Crohn's disease?

• A. Crohn's disease primarily affects the left colon and rectum, while ulcerative colitis most often affects the right colon and distal ileum.
• B. Crohn's disease presents with shallow ulcerations, whereas ulcerative colitis presents with a cobblestone appearance of the mucosal lining.
• C. The extent of involvement is noncontiguous and segmented with Crohn's disease, whereas it is contiguous and diffuse with ulcerative colitis.
• D. Crohn's disease has primarily mucosal involvement, whereas it is transmural with ulcerative colitis.

Correct answer: C

Rationale: The correct answer is C. Crohn's disease is characterized by noncontiguous, segmented involvement, meaning it can affect different areas with healthy tissue in between, while ulcerative colitis involves continuous areas of inflammation. Choices A, B, and D are incorrect because Crohn's disease can affect any part of the digestive tract from mouth to anus, can present with shallow ulcerations or deep fissures, and is transmural, meaning it affects the entire thickness of the bowel wall. On the other hand, ulcerative colitis typically affects the colon and rectum, presents with a continuous pattern of inflammation, and primarily involves the mucosal lining of the colon.

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