Nursing Elites

1. A child with pyloric stenosis is having excessive vomiting. The nurse should assess for what potential complication?

• A. Hyperkalemia
• B. Hyperchloremia
• C. Metabolic acidosis
• D. Metabolic alkalosis

Correct answer: D

Rationale: Excessive vomiting in pyloric stenosis leads to the loss of stomach acid (hydrochloric acid), resulting in metabolic alkalosis, not hyperkalemia, hyperchloremia, or metabolic acidosis. Metabolic alkalosis is characterized by a higher pH level in the blood due to the loss of acid and a relative increase in bicarbonate. Hyperkalemia is an elevated level of potassium in the blood and is not directly related to excessive vomiting in pyloric stenosis. Hyperchloremia is an excess of chloride in the blood, which is not typically associated with this condition. Metabolic acidosis is a condition characterized by a lower pH level in the blood, caused by an excess of acid or a loss of bicarbonate, which is not the typical complication seen in pyloric stenosis with excessive vomiting.

2. The mother of a 6-year-old boy who has recently had surgery for the removal of his tonsils and adenoids complains that he has begun sucking his thumb again. Which defense mechanism should the nurse include when responding to the mother?

• A. Repression
• B. Regression
• C. Rationalization
• D. Fantasy

Correct answer: B

Rationale: The correct answer is B: Regression. Regression is a common defense mechanism where a child reverts to an earlier stage of development, such as thumb-sucking, to cope with stress. In this scenario, the 6-year-old boy is using thumb-sucking (a behavior typical of earlier developmental stages) as a way to deal with the stress of surgery. Repression (choice A) involves unconsciously blocking out thoughts or feelings, which is not applicable in this case. Rationalization (choice C) is a defense mechanism where illogical or unreasonable explanations are provided to justify behavior, which is not relevant here. Fantasy (choice D) refers to the use of imagination to escape from reality, which is also not the appropriate defense mechanism for the situation described.

3. The nurse is teaching a nursing student about standard precautions. Which statement made by the student indicates a need for further teaching?

• A. I will use precautions when I give an infant oral care
• B. I will use precautions when I change an infant's diaper
• C. I will use precautions when I come in contact with blood and body fluids
• D. I will use precautions when administering oral medications to a school-age child

Correct answer: D

Rationale: Standard precautions are necessary when dealing with blood, body fluids, and potentially infectious materials. They are not required for routine administration of oral medications unless there is a potential exposure risk.

4. A mother delivers an infant at 30 weeks gestation. The mother asks the nurse for information on nutrition and if formula would be better since the baby is premature. What is the foundation for the response to the mother by the nurse?

• A. Human milk is preferred over other types of nutrition.
• B. Human milk lacks essential nutrients when the infant is preterm.
• C. Commercial infant formulas are preferred over other types of nutrition.
• D. Commercial infant formulas have not been designed to meet the nutritional needs of preterm infants.

Correct answer: A

Rationale: The correct answer is A. Human milk is the preferred food for infants, including preterm infants. It contains essential ingredients necessary for the infant's growth and development. The mother should pump her breasts to provide milk for the infant if the child is receiving enteral feedings. Once the infant can coordinate breathing, sucking, and swallowing, breastfeeding directly is encouraged. Studies have shown that preterm infants fed fortified human milk have better outcomes compared to those fed commercial infant formulas. Commercial infant formulas may not fully meet the unique nutritional needs of preterm infants, leading to potential longer hospital stays. Therefore, human milk is the best choice for feeding premature infants.

5. At what age is the first dose of the hepatitis A vaccine recommended to be started?

• A. 1 year
• B. 1 month
• C. 12 years
• D. It is not recommended at any age

Correct answer: A

Rationale: The correct answer is A: 1 year. The hepatitis A vaccine is now recommended for all children starting at age 1 year (i.e., 12 to 23 months). This is due to the recognition of hepatitis A as a significant child health problem, especially in areas with high infection rates. The virus is primarily spread through fecal-oral transmission, person-to-person contact, ingestion of contaminated food or water, and rarely through blood transfusion. Administering the first dose at 1 year helps protect children from this infection. Choices B and C are incorrect as the vaccine is not recommended at 1 month or 12 years. Choice D is also incorrect as the hepatitis A vaccine is recommended at a specific age to prevent the infection.

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