TheoryCCRN Neonatal Nurse Prep Practice Questions
Free CCRN Neonatal Nurse Prep practice questions with answers and plain-English explanations. Browse the PDF, video and online mock test.
CCRN Neonatal Nurse Prep Questions
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Q1In a neonate diagnosed with respiratory distress syndrome (RDS), which of the following conditions would contribute to a decrease in surfactant production?
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✓ Correct answer: Premature birth
Answer: Premature birth. In neonates, particularly those born prematurely, there is often a deficiency in surfactant production due to immature lungs. Surfactant reduces surface tension in the lungs and is crucial for keeping the alveoli open. Increased oxygen levels and decreased $$CO_{2}$$ levels do not directly reduce surfactant production. Term birth typically indicates adequate surfactant levels.
Q2For newborns experiencing transient tachypnea (TTN), what do grunting, nasal flaring, and chest retractions signify?
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✓ Correct answer: An attempt to maintain adequate lung expansion
Answer: An attempt to maintain adequate lung expansion For newborns with TTN, the fluid in the lungs can lead to difficulty in breathing, resulting in reduced lung expansion. Grunting and nasal flaring are mechanisms to create positive end-expiratory pressure (PEEP) to keep alveoli open, while chest retractions indicate the effort needed to breathe effectively. Energy conservation is critical for sick newborns and is often shown by decreased activity. Upper airway resistance is due to nasal or pharyngeal structural factors, and airway obstruction is typically due to mucus or congenital issues, which are not alleviated by grunting or retracting.
Q3Which of the following treatments is recommended for neonates with Respiratory Distress Syndrome (RDS) to improve lung function?
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✓ Correct answer: Exogenous Surfactant Therapy
Answer: Exogenous Surfactant Therapy Surfactant is a substance that helps keep the air sacs in the lungs open. It's often deficient in premature infants with RDS. Administering exogenous surfactant improves lung function and reduces the risk of complications and mortality in these infants. Surfactant therapy should be administered early and infants should be continuously monitored for improvements in oxygenation and respiratory effort.
Q4A nurse is caring for an infant receiving continuous positive airway pressure (CPAP) therapy and observes signs of nasal flaring and retractions. Which of the following is an appropriate nursing action?
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✓ Correct answer: Provide non-nutritive sucking with sucrose and swaddling during the adjustment of the CPAP interface
Answer: Provide non-nutritive sucking with sucrose and swaddling during the adjustment of the CPAP interface Comfort measures (e.g., non-nutritive sucking, expressed breast milk, sucrose, and swaddling) are recommended during CPAP interface adjustments to provide pain relief and reduce stress responses. Increasing the CPAP pressure without consulting the physician can cause potential harm and is not recommended. Mucus is not miscible with saline solution, so a bolus of saline will not help in this situation. Additionally, bolus saline has no role in adjusting CPAP settings. Turning the infant's head during CPAP adjustment is not advised, as it could occlude the jugular vein, increase intracranial pressure, and pose other risks.
Q5Which gas is most commonly administered to newborns in respiratory distress?
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✓ Correct answer: Oxygen
Answer: Oxygen Oxygen is most commonly administered to newborns experiencing respiratory distress to ensure they receive adequate oxygenation. Similarly to other drugs, it must be treated with caution and given only for specific indications. These include biochemical criteria (e.g., $$PaO_{2}$$ below 60 mm Hg) and clinical criteria such as respiratory distress, central cyanosis, apnea, asphyxia, hypotonia, and low oxygen saturations. While gases like helium, nitrous oxide, and carbon dioxide can have medical uses, they are not commonly used for respiratory distress in newborns.
Q6While administering indomethacin to a newborn with patent ductus arteriosus, the nurse should closely monitor for which electrolyte imbalance?
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✓ Correct answer: Hyponatremia
Answer: Hyponatremia Indomethacin can cause hyponatremia due to its effect on kidney function. It leads to increased sodium and water excretion, resulting in a decrease in serum sodium levels. Indomethacin is often used to close a patent ductus arteriosus and should be used cautiously, especially in newborns with renal impairment.
Q7What is the MOST common hematological disorder in newborns?
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✓ Correct answer: Anemia
Answer: Anemia Anemia is the most common hematological disorder in newborns, characterized by a deficiency in the number or quality of red blood cells. This condition is often caused by inadequate iron stores or hemorrhage. Hemophilia is a rare disorder in which blood doesn't clot normally due to lack of sufficient blood-clotting proteins. Thrombocytopenia is characterized by a low platelet count and can be a concern but is not as common as anemia in newborns. Leukemia is a type of cancer of the blood-forming tissues, including the bone marrow and lymphatic system, and is extremely rare in newborns.
Q8A neonate is being treated for congenital heart disease with chronic administration of spironolactone. This infant is at an increased risk for all the following electrolyte disturbances, EXCEPT:
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✓ Correct answer: Hyperkalemia
Answer: Hyperkalemia Spironolactone is an aldosterone antagonist diuretic that is used to treat conditions such as edema and heart failure in neonates. It works by blocking aldosterone receptors, which prevents sodium reabsorption but increases potassium retention. Hyponatremia, hypercalcemia, and hypovolemia are potential risks with the chronic use of spironolactone. However, hyperkalemia is a less common risk associated with its use.
Q9Neonatal congenital hypothyroidism is characterized by all the following, EXCEPT:
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✓ Correct answer: Hyperglycemia
Answer: Hyperglycemia Neonatal congenital hypothyroidism is a condition where the thyroid gland is underactive from birth, leading to a deficiency in thyroid hormones. This condition can impede normal growth and brain development if not treated promptly. Clinical signs include: - Prolonged jaundice - Large fontanelle - Constipation Other typical signs are poor feeding, hypothermia, and a hoarse cry. Hyperglycemia is not a common feature of neonatal congenital hypothyroidism.
Q10Which maternal-infant blood group combination is most likely to result in neonatal jaundice due to blood group incompatibility?
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✓ Correct answer: Mother with O-positive blood and infant with B-positive blood
Answer: Mother with O-positive blood and infant with B-positive blood. ABO incompatibility typically occurs when mothers with blood group O (absence of antigen) have infants with blood group A or B. This condition is the most frequent cause of hemolytic disease in newborns after the usage of RhoGAM to prevent Rh incompatibility. Mothers with blood group O have naturally occurring anti-A and anti-B (IgG) antibodies, which lead to neonatal jaundice (hyperbilirubinemia) in a variable and generally milder form compared to Rh incompatibility. Although 15% of all pregnancies involve possible ABO incompatibility, only a subset shows significant hemolysis and hyperbilirubinemia.
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