17.3 Clinical Inquiry

17.3 Clinical Inquiry

Quick Answer: Clinical inquiry is the ongoing process of questioning and evaluating practice and providing informed practice. Change happens through evidence-based practice, research utilization, and experiential knowledge. In the NICU, ask why this infant's SpO2 target is set where it is. Challenge unit ritual. Use journal clubs and QI. Do not perform research on neonates without IRB review and parental permission.

Clinical inquiry is PC-C in the 20% Professional Caring domain. It is not a statistician's hobby. It is how a night-shift nurse decides whether 'we always do it this way' is protecting infants or harming them. OpenExamPrep independent material covers that characteristic with neonatal examples. Adult ICU research slogans do not replace oxygen-targeting trials, caffeine stewardship, or the extra protections that apply when the subject is a 500 g infant.

AACN Certification Corporation does not publish a unique official SpO2 table as exam law. The numbers below are common clinical evidence and unit protocols, labeled as such.

Handbook meaning

The current handbook wording is the ongoing process of questioning and evaluating practice and providing informed practice, creating changes through evidence-based practice, research utilization, and experiential knowledge. Three verbs, three sources:

1. Question — Why are we doing this to this neonate tonight?
2. Evaluate — What happened when we did it, and what does the literature say?
3. Inform practice — Change the next hour, the next bundle, or the next protocol with more than a feeling.

Experiential knowledge counts. It does not outrank a body of trials when the trials exist. A nurse who has 'always' run preterm saturations at 100% has experience. That experience still has to meet oxygen-targeting evidence and this infant's physiology.

Questioning unit ritual

Ritual is practice detached from a reason. NICU examples:

• Keeping every 25-week infant at SpO2 97–100% 'so they look pink.'
• Daily chest radiographs on a stable CPAP infant 'because it is Tuesday.'
• Starting antibiotics for 48 hours on every 34-week admission regardless of risk because 'we got burned once.'
• Suctioning on a clock rather than on secretions and dyssynchrony.
• Phototherapy blankets left on a term infant whose bilirubin is already below the treatment curve 'in case.'

Questioning ritual is not insubordination. It is: What is the indication? What is the harm? What is the alternative? Who owns the protocol? Then you use the chain of command and the unit's evidence process—not a silent one-nurse protocol at 03:00.

Why this infant's SpO2 target

This is the highest-yield inquiry stem in neonatal Professional Caring because it forces you to separate population evidence from this diagnosis.

Large preterm oxygen-targeting trials (SUPPORT, BOOST II, COT, and the NeOProM meta-analysis) compared lower versus higher saturation ranges in very preterm infants. A lower target near 85–89% was associated with more deaths in pooled data; a higher target near 91–95% was associated with more treated ROP in some analyses. Many units therefore prescribe about 90–95% (sometimes 91–95%) for preterm infants in the NICU after the delivery-room minute-specific NRP targets. That is research utilization, not a tattoo on the monitor.

Now change the infant:

• PPHN in a term meconium infant may need a higher saturation strategy as part of pulmonary vascular care—not the 24-week ROP target copied blindly.
• Cyanotic congenital heart disease may have a specified mixing sat (often much lower, by cardiology protocol).
• An infant on inhaled nitric oxide still needs a documented target, not 'keep it high.'
• Delivery-room preterm resuscitation commonly starts at 21–30% oxygen with pulse oximetry, not a ritual 100% for every 25-week birth.

Worked example: 25 weeks, day 12, room-air trial failing, nurse keeps FiO2 high enough that SpO2 reads 99–100% all shift 'because BPD babies need oxygen.' Inquiry asks: What is the prescribed target? What is the alarm band? Are we creating hyperoxia without helping the lung? Bring the oxygen-targeting paper to journal club, check the unit protocol, and reset alarms to match the prescribed range. If this infant has evolved pulmonary hypertension, that is a different conversation with neonatology—not an excuse to ignore the pulse oximeter.

Journal clubs, QI, and PDSA

Journal club is clinical inquiry made social: one paper, one method critique, one 'does this change our unit?' A club that only serves snacks is not inquiry. A club that changes alarm limits, bundling, or positioning standards after appraisal is.

Quality improvement (QI) aims to improve local care. Common tools are Plan-Do-Study-Act (PDSA) cycles, run charts, and bundles (CLABSI, unplanned extubation, admission hypothermia). Example: unplanned extubation rate is high; the team tests a two-person move standard for one month, studies the count, and acts. That is inquiry plus collaboration.

QI is not a loophole to run a private experiment. If you are adding extra blood draws, extra imaging, identifiable data for a generalizable paper, or a novel therapy, you have left QI and entered research.

Research utilization versus performing research

Research utilization is applying findings that already exist (oxygen targets, caffeine for apnea of prematurity, delayed cord clamping as obstetric/neonatal practice, thermoregulation wraps). The bedside nurse can utilize research today.

Performing research on neonates is different. Infants are a protected population under U.S. human-subjects rules (Subpart D additional protections for children). Parental permission is required. Neonates cannot assent. IRB (or the designated human-subjects board) reviews risk, benefit, and consent language. Emergency research with exception from consent is rare and tightly regulated—not a night-shift idea.

Worked example: a nurse wants extra daily arterial gases for 20 infants to publish 'our weaning method.' That is not 'just QI.' Extra sticks are procedures. Identifiable gases for a paper are data. Submit for IRB review and obtain parental permission before extra procedures or using identifiable data for generalizable research. Using leftover blood from gases already drawn may still need review. Starting tomorrow because 'parents will never know' is an exam-fail and a regulatory fail.

Surveys of staff, de-identified QI dashboards, and protocol implementation after committee approval are often QI pathways—many hospitals still require a QI review determination. When in doubt, ask the IRB office; do not guess in the infant's heel.

Experiential knowledge without folklore

Experience tells you this 28-week infant always desats when laid flat for a radiograph. Inquiry uses that observation: bring a second person, keep nested flexion as much as the film allows, watch the sat, and then ask whether the daily film is even indicated. Experience that never meets a paper becomes folklore: 'pink is safe,' 'pain is not real under 28 weeks,' 'IRB is only for drug companies.'

Independent practice items at /practice/ccrn-neonatal will mix inquiry with physiology. The Professional Caring flag is the option that questions ritual, uses evidence, and refuses unofficial research, not the option that sounds most confident.

Exam traps

• Changing unit policy from three night shifts of anecdote.
• Copying another hospital's unpublished protocol onto the board overnight.
• Refusing to update practice because experience always beats evidence.
• Lowering every infant to 85–89% because 'ROP,' ignoring mortality data.
• Extra study procedures without IRB and parental permission.
• Adult ICU trial names that do not apply to a 24-week lung.