Nursing Elites

1. A client with a history of chronic alcohol use is admitted with confusion and an unsteady gait. Which deficiency should the nurse suspect?

• A. Thiamine (Vitamin B1)
• B. Cyanocobalamin (Vitamin B12)
• C. Folic acid
• D. Vitamin D

Correct answer: A

Rationale: The correct answer is Thiamine (Vitamin B1). Chronic alcohol use can lead to thiamine deficiency, which can result in neurological symptoms such as confusion and an unsteady gait. Thiamine is essential for proper brain function and nerve conduction, and its deficiency is common in individuals with alcohol use disorder. Cyanocobalamin (Vitamin B12) deficiency can also present with neurological symptoms, but in this case, the patient's history of chronic alcohol use points more towards thiamine deficiency. Folic acid deficiency typically presents with symptoms like fatigue and megaloblastic anemia. Vitamin D deficiency is associated with bone health issues rather than neurological symptoms.

2. A client who has Type 1 diabetes and is at 10-weeks gestation comes to the prenatal clinic complaining of a headache, nausea, sweating, feeling shaky, and being tired all the time. What action should the nurse take first?

• A. Check the blood glucose level.
• B. Draw blood for a Hemoglobin A1C.
• C. Assess urine for ketone levels.
• D. Provide the client with a protein snack.

Correct answer: A

Rationale: The correct action for the nurse to take first is to check the client's blood glucose level. This is crucial to determine if the symptoms are a result of hypoglycemia or hyperglycemia, which requires immediate attention to maintain the client's health and the health of the developing fetus.

3. Which of the following statements is true about ischemic colitis?

• A. Typically requires colonic resection
• B. Affects the watershed areas of the colon, namely, the splenic flexure, right colon, and rectum
• C. Is only seen in the elderly
• D. Requires colonoscopic intervention

Correct answer: B

Rationale: Ischemic colitis most often results from low-flow states associated with hypotension or poor perfusion. As a result, the vascular watershed areas of the colon, including the splenic flexure, right colon, and rectum, are at highest risk of ischemic injury. Therefore, option B is correct as it accurately identifies the areas commonly affected by ischemic colitis.

4. Which of the following statements about Helicobacter pylori (H. pylori) is false?

• A. H. pylori does not invade the gastric or duodenal epithelium
• B. H. pylori stimulates gastric acid secretion
• C. Eradication of H. pylori prevents adenocarcinoma of the stomach
• D. H. pylori produces a urease that splits urea into ammonia and CO2

Correct answer: C

Rationale: H. pylori is known to reside in the mucus layer of the stomach and does not invade the epithelium. It produces urease that splits urea into ammonia and CO2. This action helps in neutralizing the acidic environment and allows H. pylori to survive. Additionally, urease activity can be detected in diagnostic tests for H. pylori. The stimulation of gastric acid secretion and disruption of the protective mucus layer are mechanisms by which H. pylori promotes injury. While eradicating H. pylori infection has been associated with a decreased risk of developing gastric cancer, it does not prevent adenocarcinoma of the stomach entirely.

5. A 35-year-old man presents with fatigue, weight loss, and hyperpigmentation of the skin. Laboratory tests reveal hyponatremia, hyperkalemia, and low cortisol levels. What is the most likely diagnosis?

• A. Cushing's syndrome
• B. Addison's disease
• C. Hypothyroidism
• D. Pheochromocytoma

Correct answer: B

Rationale: The clinical presentation of a 35-year-old man with fatigue, weight loss, hyperpigmentation of the skin, hyponatremia, hyperkalemia, and low cortisol levels is classic for Addison's disease. These findings are consistent with primary adrenal insufficiency, where the adrenal glands fail to produce adequate cortisol. In Addison's disease, the adrenal cortex is damaged, leading to decreased cortisol production and elevated levels of ACTH. This results in symptoms such as fatigue, weight loss, and hyperpigmentation due to increased ACTH production stimulating melanocytes. Hyponatremia and hyperkalemia are common electrolyte abnormalities seen in Addison's disease due to aldosterone deficiency. Therefore, the correct diagnosis in this case is Addison's disease.

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