Nursing Elites

1. The presence of which pair of factors is a good predictor of a fluid deficit of at least 5% in an infant?

• A. Weight loss and decreased heart rate
• B. Capillary refill of less than 2 seconds and no tears
• C. Increased skin elasticity and sunken anterior fontanel
• D. Dry mucous membranes and generally ill appearance

Correct answer: D

Rationale: Dry mucous membranes and an ill appearance are good indicators of dehydration in infants, often correlating with a fluid deficit of at least 5%. Sunken fontanels and poor skin turgor are also indicative but were not options here.

2. 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.

3. What type of dehydration occurs when the electrolyte deficit exceeds the water deficit?

• A. Isotonic dehydration
• B. Hypotonic dehydration
• C. Hypertonic dehydration
• D. Hyperosmotic dehydration

Correct answer: B

Rationale: Hypotonic dehydration occurs when the loss of electrolytes exceeds the loss of water, leading to a decrease in plasma osmolarity. This often occurs when sodium loss is greater than water loss, as in diarrhea or vomiting.

4. What urine test result is considered abnormal?

• A. pH 4.0
• B. WBC 1 or 2 cells/ml
• C. Protein level absent
• D. Specific gravity 1.020

Correct answer: A

Rationale: A urine pH of 4.0 is abnormally low, indicating possible acidosis or other metabolic conditions. WBC count of 1-2 cells/ml, absence of protein, and a specific gravity of 1.020 are within normal limits.

5. Which should the nurse teach to parents regarding oral health of children? (Select all that apply.)

• A. Fluoridated water should be used.
• B. Early childhood caries is a preventable disease
• C. All options are correct
• D. Dental hygiene should begin with the first tooth eruption

Correct answer: C

Rationale: Fluoridated water helps prevent caries, early childhood caries is preventable, and dental hygiene should start with the first tooth eruption.

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