The three options. INSURE: intubate, give surfactant through the ETT, extubate to CPAP. Effective and familiar, but it carries intubation risk. LISA: surfactant through a thin catheter into the trachea of a spontaneously breathing infant on CPAP — no traditional intubation. MIST: the same idea using a vascular catheter instead of a dedicated LISA catheter.
What the evidence shows. Meta-analyses of LISA vs. INSURE in infants of 25–32 weeks consistently show less BPD, less mechanical ventilation, and similar mortality. The 2022 European Consensus Guidelines recommend LISA first-line for spontaneously breathing preterm infants on CPAP who meet surfactant criteria.
The US gap. INSURE still dominates in many American NICUs, partly from training gaps and partly from credentialing questions. If your NICU doesn’t offer LISA, ask: is the barrier clinical, or institutional?
Clinical threshold: FiO₂ 0.30 or higher on CPAP of at least 6 cmH₂O in a spontaneously breathing preterm infant is the most common surfactant trigger. Under 28 weeks, many centers give prophylactic surfactant in the first hour regardless of FiO₂.
The evidence. HF-ACTION showed supervised exercise in stable HFrEF cut the composite of cardiovascular death or hospitalization by 11%, with real gains in 6-minute walk distance, peak VO₂, and quality of life. Newer meta-analyses show benefit in both HFrEF and HFpEF.
Why it works. The gains aren’t mainly cardiac. They’re peripheral: skeletal muscle deconditioning, ventilatory inefficiency, and poor oxygen extraction all improve with structured exercise, regardless of ejection fraction.
The RT opening. Pulm rehab programs built for COPD are already equipped for HF patients — the SpO₂ and heart rate monitoring, dyspnea scales, exercise progression, and education carry over. The barriers are referral habits and CMS rules that cover cardiac rehab separately. Co-referring suitable HFrEF patients with your cardiology team needs no new infrastructure.
Who qualifies: Stable HFrEF (EF under 40%), NYHA class II–III, medically optimized. Exclude decompensated HF, significant arrhythmia, or hemodynamic instability. Most outpatient HF clinic patients are candidates — ask the cardiologist.
The pitch vs. the reality. “Work when you want, higher hourly rate.” For hospitals, per-diem is a staffing buffer. For many RTs it becomes no benefits, unpredictable income, constant schedule changes, and first-cut status when census drops. Turnover is far higher than in full-time roles, and the knowledge walks out with them.
When it works, and when it doesn’t. Per-diem suits semi-retired RTs and people picking up extra shifts on top of a primary job. It doesn’t suit the RT working 36 hours every week, never called off, paying for their own insurance with no PTO and no job security. That’s a full-time role in disguise.
Your leverage. Document your average weekly hours over a rolling 90 days. Compare your real compensation — hourly rate minus insurance, PTO, and retirement — to a full-time position. Bring the numbers to your manager. Many hospitals convert steady per-diem roles to FTE when shown the data.
For managers: Audit your float pool. If per-diem staff have worked predictable, high-hour schedules for more than 90 days, convert them. Replacing a trained RT — recruiting, onboarding, 3–6 months of reduced productivity — costs far more than benefits.
The problem. Vent days, extubation rates, reintubation rates, protocol adherence — none of it helps unless you’ve defined the process, the outcome, the target, and a way to close the gap.
Metrics worth tracking. Ventilator management: low tidal volume adherence, SBT completion, 48-hour reintubation. Airway safety: unplanned extubations per 1,000 vent days, decannulation timeline. Therapy appropriateness: neb-to-MDI conversion, aerosols given to non-wheezing patients. Process reliability: time to first SBT, weaning protocol starts for eligible patients. Pick one. Define the current state. Set a target. Run a small change. Measure again.
The common failure. Measuring outcomes without measuring process. Reintubations go up — but why? Without SBT pass rates, readiness timing, and post-extubation monitoring adherence, the outcome tells you something’s wrong but not where to intervene. Build the process map before the dashboard.
Starting metric: Unplanned extubations per 1,000 vent days. The benchmark is 1.0 or lower. If yours is higher, do a root cause review of your last five — the pattern will show you where to intervene.
Next: Mechanical power — the lung injury metric your ventilator is already calculating.
Soon: What makes a great RT preceptor, and why it’s one of the most important things you can do.
On deck: IPF and ILD — the RT’s role when the disease doesn’t reverse.
Staying at the vent,
15 years across academic medical centers & community hospitals
