A 3-day-old newborn diagnosed with erythroblastosis fetalis is receiving phototherapy and requires an exchange transfusion. Which nursing intervention is the highest priority during the exchange transfusion procedure?
1Monitor the newborn's temperature every 15 minutes during the procedure
2Document the amount of blood withdrawn and infused every 30 minutes
3Continuously monitor cardiac rhythm and vital signs throughout the procedure✓ 정답
4Maintain strict aseptic technique when handling blood products
해설
Continuous cardiac monitoring is the highest priority during exchange transfusion due to risks of arrhythmias and hemodynamic instability. Other interventions are important but less critical for immediate life-threatening complications.
Clinical Judgment
This question assesses your clinical judgment in identifying the immediate life-threatening risks that can occur during an exchange transfusion and determining the highest priority nursing intervention accordingly. The key is "highest priority." Exchange transfusion is a high-risk procedure that causes rapid shifts in blood volume, electrolytes (especially calcium and potassium), body temperature, and blood pH in a newborn. This can suddenly lead to cardiac arrhythmias, hemodynamic instability, and even cardiac arrest. Therefore, continuous monitoring to detect these potential catastrophes early and respond immediately is the life-saving, highest-priority intervention. Other interventions are important, but they do not take precedence when facing an immediate threat to life.
Memory Tip
A mnemonic to remember the risks of exchange transfusion: Cardiac Arrhythmia Threat (CAT). Calcium drop (hypocalcemia), Acid-base change, and Temperature/Volume shift can cause a cardiac Arrhythmia (Threat). The highest priority is continuous cardiac monitoring to catch this CAT.
KR vs US
While vital signs are thoroughly monitored during exchange transfusions in Korea as well, the NGN/CJMM perspective places a stronger emphasis on the explicit recognition of the importance of 'continuous' monitoring and its rationale (a sudden life threat). The U.S. NCLEX highly prioritizes risk-based prioritization, where the action that prevents the 'most dangerous outcome (what can lead to the worst result)' is the top priority.
임상 시나리오
Clinical Practice Guide
Nurse's role during exchange transfusion:
1. Notify HCP! Immediately report any sudden changes in heart rate/rhythm, blood pressure, respiration, or oxygen saturation.
2. Have Calcium Gluconate ready. This is to prepare for hypocalcemia (signs: tremors, twitching, bradycardia) caused by citrated blood.
3. Administer blood warmed to near body temperature (37°C) using an incubator or blood warmer. This prevents hypothermia and vasoconstriction.
4. Accurate documentation: Record blood out and blood in volumes, vital signs, and neonatal response every 15 minutes or with each exchange cycle.
Caution
In SATA (Select All That Apply) questions asking about "important nursing interventions during exchange transfusion," options 1, 2, 3, and 4 can all be correct answers. However, in a single-answer question like this one that asks for the "Highest Priority," you must select the action that monitors for and prevents immediate life threats. "Documentation" or "Aseptic technique" are essential, but they have a lower priority than Continuously monitor for preventing acute complications during the procedure.
핵심 개념
Erythroblastosis Fetalis — Fetal erythroblastosis. A condition where maternal antibodies attack fetal red blood cells due to Rh(D) or ABO blood type incompatibility between mother and fetus, causing hemolysis. Can lead to severe anemia, hyperbilirubinemia, and hydrops.
Exchange Transfusion — Exchange transfusion. A process of removing the patient's blood in small amounts while simultaneously administering donor blood in small amounts. Used for hyperbilirubinemia, severe anemia, toxin removal, etc. In newborns, approximately twice the blood volume is slowly exchanged.
Kernicterus — Kernicterus. Irreversible brain damage caused by deposition of unconjugated bilirubin in the basal ganglia. Early signs include lethargy, weak sucking, high-pitched crying, and opisthotonos; later stages cause seizures, hearing loss, and cerebral palsy.
Hyperbilirubinemia — Hyperbilirubinemia. A condition where the blood bilirubin level exceeds the normal range. Physiological jaundice is common in newborns, but if it rises rapidly due to pathological causes (hemolysis, infection, etc.), exchange transfusion may be necessary.
Cardiac Arrhythmia — Cardiac arrhythmia. Irregular heartbeat caused by abnormal electrical activity in the heart. During exchange transfusion, bradycardia, tachycardia, etc. can occur suddenly due to hypocalcemia, hyperkalemia, and rapid changes in blood volume, making continuous monitoring essential.