CCRN Neonatal common mistakes
CCRN Neonatal · Understand the traps and how to avoid them.
Selects 'screening normal, routine newborn care' when the scenario shows a 2% pre-/post-ductal SpO2 difference in an infant with a systolic murmur, weak femoral pulses, and rising creatinine, ending the cardiovascular assessment at the saturation numbers.
Candidates memorize the 3% CCHD screening cutoff and treat that single number as the entire cardiovascular evaluation. Coarctation, interrupted aortic arch, and critical aortic stenosis can produce normal saturations while the infant is already in shock.
What to do instead
Always pair the saturation screen with four-limb blood pressures and femoral pulse palpation. A blood pressure gradient or weak/absent femoral pulses is abnormal regardless of SpO2 and should trigger echocardiography and a prostaglandin discussion.
Gives two or three 20 mL/kg normal saline boluses to a hypotensive neonate with a suspected ductal-dependent systemic obstruction (interrupted arch, critical aortic stenosis) before initiating prostaglandin.
Pediatric and adult shock algorithms lead with volume, and candidates apply them reflexively. In systemic outflow obstruction the ventricle is already volume-loaded and pulmonary overcirculation is the problem, so boluses precipitate pulmonary edema and worsen oxygenation.
What to do instead
Make PGE1 the first action to secure ductal patency, limit fluid to a cautious 10 mL/kg, and move to inotropes. Reassess for pulmonary overcirculation once the ductus opens; the answer choice that waits or volume-loads first is the distractor, not the correct action.
Chooses 'obtain a chest radiograph first' for a ventilated preterm infant who has sudden desaturation, bradycardia, asymmetric breath sounds, and a shift in the point of maximal impulse.
Textbook sequencing (image before intervention) overrides recognition that tension pneumothorax is a bedside clinical diagnosis and that the accompanying bradycardia means the infant is decompensating right now.
What to do instead
Treat as tension physiology: increase FiO2, hand-ventilate, use transillumination if available, and prepare needle thoracostomy or thoracentesis at the second intercostal space while imaging is arranged. Ordering the film first is never the keyed answer when hemodynamics are failing.
Calculates a PaO2/FiO2 ratio, or uses SpO2/FiO2, when the item asks whether an infant with PPHN meets criteria for inhaled nitric oxide.
P/F ratio is the ARDS metric learned in adult and pediatric content. Neonatal protocols and the iNO trial literature use the oxygenation index, which incorporates mean airway pressure, so candidates compute the wrong number and pick the wrong threshold.
What to do instead
Write out OI = (mean airway pressure x FiO2 x 100) / PaO2 before answering. Screen for iNO at an OI around 20 and remember to optimize lung recruitment and confirm ventricular function first; an answer built on P/F is a cue that the calculation was wrong.
Treats a jittery, symptomatic infant with a point-of-care glucose of 22 mg/dL by feeding and rechecking in 30 to 60 minutes.
Many hypoglycemia pathways begin with a feed for the asymptomatic at-risk infant at a lower threshold, and candidates overgeneralize that first step to a symptomatic infant or one below the treat-immediately cutoff.
What to do instead
For symptomatic hypoglycemia or a very low value: send a confirmatory laboratory glucose, give IV 10% dextrose 2 mL/kg (200 mg/kg) bolus, start a continuous infusion at roughly 6 to 8 mg/kg/min, and recheck in 30 minutes. Feeding alone is not the keyed answer for a symptomatic infant.
Attributes bilious emesis in a 3-day-old term infant to gastroesophageal reflux or feeding intolerance and selects 'continue feeds, recheck in 4 hours.'
Reflux and benign feeding problems are common in the well newborn, so the answer feels plausible. Bilious emesis is the one pattern that is never benign in a neonate, and candidates forget the surgical differential (malrotation with volvulus, atresia, meconium ileus).
What to do instead
Treat every bilious emetic as a surgical emergency until excluded: make the infant NPO, place a decompressive tube, obtain abdominal films and surgical consultation. Any answer that continues enteral feeds in this scenario is wrong.
Defers therapeutic hypothermia referral because the aEEG and MRI are pending or because the infant's examination has improved at 4 hours of age.
Candidates frame cooling as a treatment chosen after imaging confirms injury. In fact it is a time-critical intervention driven by bedside criteria, and the window closes at 6 hours of age.
What to do instead
Apply the criteria at the bedside: gestational age at least 36 weeks, cord pH under 7.0 or base deficit 16 or more (or a 10-minute Apgar of 5 or less), plus encephalopathy. Initiate or transfer within 6 hours and begin passive cooling en route rather than waiting for studies.
Chooses an ethics consultation or a forced treatment plan when a mother of a 24-week infant avoids the bedside and declines to hold her baby, with the item asking for the priority nursing action.
Candidates jump to a conflict-and-ethics frame. Withdrawal, avoidance, and refusal to touch are far more often acute grief, shock, or postpartum depression than true decisional conflict.
What to do instead
Answer with grief and depression screening, a trauma-informed offer of presence without pressure, and social work or psychology involvement to clarify the parents' goals. Reserve ethics consultation for genuine value conflicts, not emotional disengagement.
Anchors the entire plan on sepsis when a preterm infant develops new apnea, temperature instability, and glucose lability, selecting broad-spectrum antibiotics and nothing else.
Early necrotizing enterocolitis and sepsis share nonspecific signs, and single-system thinking keeps candidates from assembling the multisystem picture (thrombocytopenia, metabolic acidosis, abdominal findings) that the item is testing.
What to do instead
Bundle the workup: blood culture and antibiotics plus abdominal examination and girth, feeding hold, abdominal radiograph looking for pneumatosis, lactate, and a platelet trend. Treat both until one is excluded, and reject any answer that stops at a single organ system.
Selects 'document the refusal and administer the treatment anyway' when a parent declines a recommended intervention such as vitamin K for a home-born infant or a blood transfusion for a family with religious objections.
Candidates equate advocacy with overriding the family, forgetting that parents are the surrogate decision-makers for a minor's routine care and that informed refusal must be respected and documented.
What to do instead
Educate and explore the objection (offer preservative-free vitamin K, explore a transfusion-sparing plan), document informed refusal, and escalate to the attending and ethics only when the refusal is of a life-sustaining therapy. Never key an answer that gives treatment over an informed refusal.