Nursing Elites

1. The client with a history of heart failure is taking furosemide (Lasix). Which laboratory result should the nurse monitor closely?

• A. Serum sodium.
• B. Serum potassium.
• C. Serum calcium.
• D. Serum magnesium.

Correct answer: B

Rationale: Furosemide (Lasix) is a loop diuretic that can lead to potassium loss, causing hypokalemia. Monitoring serum potassium levels is crucial to prevent complications such as cardiac dysrhythmias associated with low potassium levels.

2. A 30-year-old woman presents with fatigue, polyuria, and polydipsia. Laboratory tests reveal hyperglycemia and ketonuria. What is the most likely diagnosis?

• A. Type 1 diabetes mellitus
• B. Type 2 diabetes mellitus
• C. Diabetes insipidus
• D. Hyperthyroidism

Correct answer: A

Rationale: The clinical presentation of a 30-year-old woman with fatigue, polyuria, polydipsia, hyperglycemia, and ketonuria is highly suggestive of type 1 diabetes mellitus. Type 1 diabetes mellitus is characterized by autoimmune destruction of pancreatic beta cells, leading to insulin deficiency and subsequent hyperglycemia. The presence of ketonuria indicates the breakdown of fats for energy due to the lack of insulin. In contrast, type 2 diabetes mellitus typically presents with gradual onset and is often associated with insulin resistance rather than absolute insulin deficiency. Diabetes insipidus is characterized by polyuria and polydipsia but is not associated with hyperglycemia or ketonuria. Hyperthyroidism may present with symptoms like fatigue but does not typically cause hyperglycemia or ketonuria.

3. The patient described in the preceding questions has a positive H. pylori antibody blood test. She is compliant with the medical regimen you prescribe. Although her symptoms initially respond, she returns to see you six months later with the same symptoms. Which of the following statements is correct?

• A. She is at high risk for reinfection with H. pylori.
• B. A positive serum IgG indicates that eradication of H. pylori was unsuccessful.
• C. The urease breath test is an ideal test to document failure of eradication.
• D. Dyspepsia usually improves with H. pylori eradication.

Correct answer: C

Rationale: Reinfection with H. pylori is rare, and the persistence of infection usually indicates poor compliance with the medical regimen or antibiotic resistance. A positive serum IgG may persist indefinitely and cannot alone determine the failure of eradication. However, a decrease in quantitative IgG levels has been used to confirm treatment success. The urease breath test is recommended to assess the failure of eradication as it can detect the presence of H. pylori in the stomach, indicating treatment failure if positive.

4. What is the primary action of a short-acting beta2-agonist (SABA) prescribed to a patient with an acute asthma exacerbation?

• A. Reduce inflammation
• B. Relieve bronchospasm
• C. Thin respiratory secretions
• D. Suppress cough

Correct answer: B

Rationale: The correct answer is B: Relieve bronchospasm. The primary action of short-acting beta2-agonists (SABAs) is to relieve bronchospasm. These medications are bronchodilators that work by opening the airways, making breathing easier for patients experiencing asthma exacerbations. By relieving bronchospasm, SABAs help improve airflow and alleviate symptoms of asthma such as wheezing and shortness of breath. Choices A, C, and D are incorrect because SABAs do not primarily reduce inflammation, thin respiratory secretions, or suppress cough. While these actions may be part of asthma management, the immediate goal of using a SABA during an acute exacerbation is to quickly relieve bronchospasm and improve airflow.

5. A male infant born at 30-weeks gestation at an outlying hospital is being prepared for transport to a Level IV neonatal facility. His respirations are 90/min, and his heart rate is 150 beats per minute. Which drug is the transport team most likely to administer to this infant?

• A. Ampicillin (Omnipen) 25 mg/kg slow IV push.
• B. Gentamicin sulfate (Garamycin) 2.5 mg/kg IV.
• C. Digoxin (Lanoxin) 20 micrograms/kg IV.
• D. Beractant (Survanta) 100 mg/kg per endotracheal tube.

Correct answer: D

Rationale: In this scenario, the infant is a preterm neonate with respiratory distress and is being transported to a Level IV neonatal facility. The drug most likely to be administered by the transport team is Beractant (Survanta) via endotracheal tube. Beractant is a surfactant used to treat respiratory distress syndrome in preterm infants by improving lung compliance and reducing the need for mechanical ventilation.

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