Nokea
The nurse is conducting an admission assessment of an 11-month-old infant with CHF who is scheduled for repair of restenosis of coarctation of the aorta that was repaired 4 days after birth. Findings include blood pressure higher in the arms than the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. What pathophysiologic mechanisms support these findings?
- A. The aortic semilunar valve obstructs blood flow into the systemic circulation
- B. The lumen of the aorta reduces the volume of the blood flow to the lower extremities
- C. The pulmonic valve prevents adequate blood volume into the pulmonary circulation
- D. An opening in the atrial septum causes a murmur due to a turbulent left to right shunt
Correct Answer: B
Rationale: The findings are consistent with coarctation of the aorta, where narrowing of the aorta leads to decreased blood flow to the lower extremities. This results in higher blood pressure in the arms compared to the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. Choices A, C, and D are incorrect because they do not align with the pathophysiological mechanisms of coarctation of the aorta, which specifically involves narrowing of the aortic lumen reducing blood flow to the lower extremities.
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A child with cystic fibrosis is admitted to the hospital with respiratory distress. Which intervention should the practical nurse (PN) implement?
- A. Administer bronchodilators as prescribed.
- B. Limit fluid intake.
- C. Provide a high-fat diet.
- D. Encourage bed rest only.
Correct Answer: A
Rationale: Administering bronchodilators as prescribed is crucial for managing respiratory distress in children with cystic fibrosis. Bronchodilators help to open the airways, facilitating easier breathing for the child. Limiting fluid intake, providing a high-fat diet, or encouraging bed rest only are not appropriate interventions for respiratory distress associated with cystic fibrosis. Limiting fluid intake could worsen dehydration, a high-fat diet is not recommended due to pancreatic insufficiency in cystic fibrosis, and bed rest alone does not address the respiratory distress.
The mother of a 9-month-old girl provides the practical nurse with information about her daughter's diet. Which statement by the mother may indicate why the infant has been diagnosed with iron-deficiency anemia?
- A. She almost never drinks sugary water.
- B. She has been on whole milk for 7 months.
- C. She likes to chew on bread as a snack.
- D. She doesn't like to eat peaches or pears.
Correct Answer: B
Rationale: The correct answer is B. Infants should not be given cow's milk before 1 year of age as it can interfere with iron absorption and lead to anemia. Choice A is incorrect as avoiding sugary water is actually a good practice. Choice C is unrelated to iron-deficiency anemia. Choice D, not liking peaches or pears, is also not directly related to iron-deficiency anemia.
Which statement by a school-aged client going to summer camp indicates the best understanding of the mode of transmission of Lyme disease?
- A. I'll cover my mouth with a wet cloth if there's too much dust blowing.
- B. Cuts and scrapes need to be washed out and covered right away.
- C. I'm not going to swim where the water is standing still or feels too hot.
- D. I have to wear long sleeves and pants when we're hiking around the pond.
Correct Answer: D
Rationale: The correct answer is D. Wearing long sleeves and pants is an effective measure to prevent tick bites, which can transmit Lyme disease. Ticks are commonly found in wooded areas and tall grass, so covering exposed skin helps reduce the risk of tick bites and subsequently lowers the risk of contracting Lyme disease. Choices A, B, and C do not directly address the mode of transmission of Lyme disease. Option A pertains to respiratory protection against dust, Option B focuses on wound care, and Option C relates to water safety, none of which are directly related to preventing Lyme disease transmission.
A 7-year-old is admitted to the hospital with persistent vomiting, and a nasogastric tube attached to low intermittent suction is applied. Which finding is most important for the nurse to report to the healthcare provider?
- A. Gastric output of 100 mL in the last 8 hours.
- B. Shift intake of 640 mL IV fluids plus 30 mL PO ice chips.
- C. Serum potassium of 3.0 mEq/L.
- D. Serum pH of 7.45.
Correct Answer: C
Rationale: A serum potassium level of 3.0 mEq/L is significantly low and indicates hypokalemia, which can lead to serious complications such as cardiac arrhythmias. Therefore, it is crucial for the nurse to report this finding promptly to the healthcare provider for immediate intervention. The other findings are not as critical in this situation. Gastric output of 100 mL in the last 8 hours may be expected in a patient with persistent vomiting. The shift intake of IV fluids and ice chips indicates fluid replacement, which is important but not as urgent as correcting electrolyte imbalances. A serum pH of 7.45 is within the normal range and does not indicate an immediate concern.
When obtaining the nursing history of a 7-year-old child admitted to the hospital with acute glomerulonephritis (AGN), which finding should the nurse expect to obtain?
- A. High blood cholesterol level on routine screening.
- B. Increased thirst and urination.
- C. A recent strep throat infection.
- D. A recent DPT immunization.
Correct Answer: C
Rationale: When assessing a child with acute glomerulonephritis (AGN), a common trigger to expect in the nursing history is a recent strep throat infection. AGN can be triggered by a streptococcal infection, leading to the deposition of immune complexes in the glomeruli. This finding is crucial as it helps identify a potential cause for the development of AGN in the child. Choices A, B, and D are incorrect as high blood cholesterol levels, increased thirst and urination, and recent DPT immunization are not directly associated with triggering acute glomerulonephritis in children.