NR 439 Week 6 Isopropyl Alcohol Evidence Synthesis Example

Course	NR 439 RN Evidence-Based Practice
Week	6
Paper type	Evidence synthesis
Length	About 1,180 words, 7 pages
Format	APA 7 student paper
School	Chamberlain University
Program	RN-to-BSN
Updated	October 2026

Free sample paper for NR 439 Week 6

Inhaled Isopropyl Alcohol for Nausea After Surgery: A Synthesis of the Evidence

Student Name

College of Nursing, Chamberlain University

NR 439: RN Evidence-Based Practice

Instructor Name

Month Day, Year

What this page is doingThe title names the intervention and the clinical situation and calls the document a synthesis, which tells the grader to expect one answer drawn from several sources rather than a tour of articles. Student APA 7 title page, no running head.

Inhaled Isopropyl Alcohol for Nausea After Surgery: A Synthesis of the Evidence

The Question and the Short Answer

The PICOT question for this synthesis asks whether, in adults with nausea in the postanesthesia care unit after general anesthesia, inhaling isopropyl alcohol from a standard prep pad, compared with waiting for a rescue antiemetic dose alone, reduces nausea severity within 30 minutes. The short answer from the appraised evidence is a qualified yes: inhaled isopropyl alcohol probably gives faster, short-lived relief of nausea than saline or no treatment, it is unlikely to replace antiemetic drugs for patients who are vomiting or whose nausea persists, and the evidence that it works specifically after surgery is weaker than the evidence from emergency department patients.

That answer rests on four sources appraised last week: one systematic review and three randomized controlled trials. The certainty of the answer is low to moderate, for reasons laid out below, and it is strong enough to justify offering a prep pad while a rescue dose is prepared, which is a small, cheap step that nurses in the postanesthesia care unit can take without an order in many facilities that have adopted a protocol.

What this page is doingThe answer comes in the first paragraph, before any study is named, so a reader knows exactly what the section concluded. It also states its certainty in the second paragraph, which sets the level of the claim before the evidence arrives and makes it easier to check.

What the Evidence Agrees On

Every source that tested isopropyl alcohol against an inactive comparison found that it reduced nausea faster. In the Cochrane review, patients who inhaled isopropyl alcohol after surgery needed rescue antiemetics less often than patients who inhaled saline, and the effect appeared within minutes (Hines et al., 2018). Two emergency department trials pointed the same way. Beadle et al. (2016) randomized adults with nausea to sniff an isopropyl alcohol pad or a saline pad and found a larger fall in nausea scores at ten minutes with alcohol, and April et al. (2018) found that inhaled isopropyl alcohol, with or without oral ondansetron, reduced nausea more at 30 minutes than ondansetron alone. Across settings, then, the direction of effect is consistent and the time to relief is short, which fits the way patients describe it: the smell interrupts the nausea quickly.

The sources also agree on what the intervention does not do. Relief is brief, often lasting minutes rather than hours, and none of the trials showed that inhaled alcohol prevented vomiting or removed the need for drug treatment in patients with severe or persistent nausea. The review found that patients given isopropyl alcohol alone were more likely to need an antiemetic later than patients given a standard antiemetic drug (Hines et al., 2018). Read together, these findings describe a bridge, not a substitute.

Safety findings were reassuring across the set. The trials reported no serious adverse events from inhaling isopropyl alcohol from a pad held a short distance below the nose, and the few complaints recorded were about the smell itself. That matters for a unit protocol, because an intervention with a small benefit and almost no risk can reasonably be offered before the evidence is certain, while one with a small benefit and a real risk cannot. The practical requirements are simple: a sealed pad, opened and held about two to three centimeters from the nostrils, with the patient taking several slow breaths, repeated if nausea returns within the next few minutes.

What this page is doingStudies appear inside sentences that argue something, several to a sentence where they agree, instead of one paragraph per paper. The second paragraph groups what the sources agree the intervention cannot do, which is as important to a practice recommendation as what it can do.

How Much Confidence the Answer Deserves

Certainty is limited by three features of the evidence already appraised. First, blinding is nearly impossible, because patients can smell the difference between alcohol and saline, and nausea is scored by the patient, so expectation could account for part of the effect. Second, the trials were small; the emergency department studies each enrolled around one hundred patients or fewer, which makes their estimates of effect size imprecise even when the direction is clear. Third, the review itself graded most of its comparisons as low or very low certainty, citing small samples and risk of bias. The strongest design in this set is therefore also the one most openly cautious about what it can conclude.

The randomized designs do protect against the most common problem in nursing intervention studies, which is that patients who receive a new intervention differ from those who do not. That protection, along with a consistent direction across settings and a plausible mechanism, is why the answer is a qualified yes rather than an uncertain one. Polit and Beck (2021) note that consistency across studies with different samples strengthens confidence in a finding even when each study is modest, and that principle applies here.

What this page is doingConfidence is argued through design and sample, the appraisal already done, rather than asserted with words like strong or compelling. Pointing out that patients can smell the intervention is the kind of specific bias judgment that shows the writer understands why blinding matters for this particular outcome.

Where the Sources Disagree

The evidence divides on two points. The first is the aromatic. Hunt et al. (2013) tested ginger essential oil, a blend of ginger, spearmint, peppermint and cardamom, and saline in surgical patients, and found that the blend reduced nausea and requests for antiemetics while ginger alone had a smaller effect; the review, by contrast, found no clear benefit for peppermint alone (Hines et al., 2018). A reasonable explanation is that the aromatics are different interventions with different strengths and should not be pooled as a single thing called aromatherapy. Isopropyl alcohol has the most consistent support and is also the easiest to standardize, since every unit already stocks identical pads.

The second disagreement concerns the setting. The emergency department trials show larger and cleaner effects than the postoperative studies. The likely reason is the population: nausea in the emergency department comes from many causes and is often milder, whereas nausea after general anesthesia is driven by anesthetic agents and opioids and may respond less to a brief sensory distraction. That difference matters for this question, because the most convincing trials are not the most direct ones.

What this page is doingConflicting findings are named and each gets a proposed reason, a difference in the aromatic and a difference in the population. The paragraph then says which way the conflict cuts for this PICOT, which is the move that separates a synthesis from an average.

What This Evidence Cannot Settle

Three questions remain open after the reading is done. No appraised study compared isopropyl alcohol with nothing at all in patients already receiving prophylactic antiemetics, which describes most surgical patients on this unit. No study followed patients long enough to show whether early relief reduces later vomiting, delayed oral intake or time to discharge from the postanesthesia care unit. And none reported whether patients with chronic respiratory disease tolerate repeated inhalation, a safety question that a protocol would need to address. Any practice recommendation built on this synthesis will have to present the intervention as an adjunct offered while a rescue dose is prepared, measure time to relief and rescue antiemetic use locally, and exclude or monitor patients with reactive airways until better evidence is available.

Read against the PICOT question as written, then, the synthesis answers the comparison with saline or no treatment more clearly than it answers the comparison with a rescue drug. The question asked about waiting for a rescue antiemetic, and the evidence suggests the two should not compete at all: the pad fills the minutes between a patient saying they feel sick and the drug taking effect. That reframing is the most useful product of this synthesis, and it should be stated in the proposal rather than left for a reader to infer.

What this page is doingThe section ends on what the evidence cannot answer, stated as specific gaps rather than the phrase more research is needed. Each gap is then carried into what a recommendation would have to do about it, which gives next week's proposal its limits in advance.

References

April, M. D., Oliver, J. J., Davis, W. T., Ong, D., Simon, E. M., Ng, P. C., & Hunter, C. J. (2018). Aromatherapy versus oral ondansetron for antiemetic therapy among adult emergency department patients: A randomized controlled trial. Annals of Emergency Medicine, 72(2), 184-193. https://doi.org/10.1016/j.annemergmed.2018.01.016

Beadle, K. L., Helbling, A. R., Love, S. L., April, M. D., & Hunter, C. J. (2016). Isopropyl alcohol nasal inhalation for nausea in the emergency department: A randomized controlled trial. Annals of Emergency Medicine, 68(1), 1-9. https://doi.org/10.1016/j.annemergmed.2015.09.031

Hines, S., Steels, E., Chang, A., & Gibbons, K. (2018). Aromatherapy for treatment of postoperative nausea and vomiting. Cochrane Database of Systematic Reviews, 2018(3), Article CD007598. https://doi.org/10.1002/14651858.CD007598.pub3

Hunt, R., Dienemann, J., Norton, H. J., Hartley, W., Hudgens, A., Stern, T., & Divine, G. (2013). Aromatherapy as treatment for postoperative nausea: A randomized trial. Anesthesia & Analgesia, 117(3), 597-604. https://doi.org/10.1213/ANE.0b013e31824a0b1c

Polit, D. F., & Beck, C. T. (2021). Nursing research: Generating and assessing evidence for nursing practice (11th ed.). Wolters Kluwer.

Reading the NR 439 Week 6 instructions

The Week 6 synthesis has you combine the evidence from your matrix into an answer to your PICOT question. Most sections require the question, an overall answer, areas of agreement across studies, the strength of the evidence, conflicting findings, gaps and APA. Give the answer in the first paragraph, before naming any study. State how confident the answer can be. Write about findings, with several studies in a sentence where they agree, instead of one paragraph per paper. Argue confidence from design and sample. Name each disagreement and propose a reason for it. End with specific gaps rather than the phrase "more research is needed," and say how they limit any recommendation.

How this NR 439 Week 6 example is built

The first section states the question, inhaled isopropyl alcohol from a prep pad compared with waiting for a rescue antiemetic, and the qualified yes. The agreement section reports that every source testing alcohol against an inactive comparison found faster relief, that relief lasted minutes and did not prevent vomiting, and that safety findings were reassuring. The confidence section names unblinding, subjective scoring and small samples, while crediting randomization. The disagreement section contrasts Hunt and colleagues' ginger blend results and explains why emergency department trials such as Beadle and colleagues' show cleaner effects than postoperative studies. The gaps section notes that no study compared alcohol with nothing in patients already given prophylactic antiemetics. Polit and Beck support the method.

Where the points sit in the NR 439 Week 6 rubric

Synthesis rubrics in NR 439 typically score a clear answer to the question, integration across sources, assessment of evidence strength, handling of conflicting findings, identification of gaps, writing quality and APA. Integration is the row that separates synthesis from summary, and this paper earns it by writing about findings with several studies per sentence. The answer is credited because it appears in the first paragraph with its certainty. Strength scores when confidence is argued from design, including the problem that patients can smell the intervention. Conflicts earn points because each has a proposed reason. Gaps are credited when they are specific and tied to the question. Five references complete APA.

Common NR 439 Week 6 mistakes, and how to avoid them

The predictable loss on this paper is a synthesis that is really a summary, each study described in turn in matrix order with a closing line that more research is needed. Another is withholding the answer until the end, or never giving one. Students also call evidence strong or compelling without explaining why, ignore conflicting results or treat emergency department trials as if they were postoperative. Recommending a practice change belongs to the next assignment, so keep this section to what the evidence shows. Two to four pages is typical. If your studies contradict each other, say so and explain why. Send your matrix and an NR 439 synthesis can be drafted with the answer first.

Get a NR 439 Week 6 example written to your instructions

Send the Week 6 instructions along with your completed matrix or the studies in it, and a custom example is written as a synthesis of that evidence and returned inside 24 to 48 hours. The first one is free. The appraisal decisions behind it remain yours.

More NR 439 papers and RN-to-BSN samples

NR 439 Week 6 questions, answered

How long should a synthesis be?

Shorter than the matrix it comes from, and most sections set a limit. Length here is usually a symptom: a long synthesis is normally describing studies one by one rather than arguing across them. If the material will not compress, the grouping is the thing to fix rather than the word count.

What if my studies contradict each other?

Then you have something to write about, and the section gets stronger. Name the contradiction, then propose why it exists, since differences in population, dose, setting or measure explain most of them. A synthesis that reports conflict and reasons about it outscores one that quietly drops the inconvenient study.

Do I recommend a practice change in this section?

Check the instructions, since sections differ on where the recommendation belongs. Where the synthesis is separate, keep it to what the evidence supports and leave the proposal for the following week. Mixing the two early tends to make the synthesis argue toward a change instead of toward what was actually found.

Where can I find a free NR 439 Week 6 sample paper?

The complete Week 6 synthesis on inhaled isopropyl alcohol for postoperative nausea, with the short answer, agreement, confidence, disagreements, gaps and five references, can be read here.

What is the short answer in the NR 439 Week 6 synthesis?

A qualified yes: inhaled isopropyl alcohol probably gives faster, brief relief than saline or no treatment, but it is unlikely to replace antiemetic drugs and the postoperative evidence is weaker.