Sepsis Screening: NEWS2, Infection Cues & Bundle Support
On a surgical ward, a “low-grade” temperature with new confusion is often the whole story. This guide is for nurses who must screen every round, name the suspected source, start the clock on bundle elements per orders, and escalate before urine output and blood pressure tell the same tale.
Contents
Quick facts
Key takeaway
Trend plus source beats a single temperature. When infection suspicion meets rising early-warning scores, falling urine output, or new confusion, escalate and time-stamp cultures, lactate, and antibiotics per orders—then prove on the next round whether perfusion improved.
Quick procedure summary
| Item | Detail |
|---|---|
| Procedure name | Sepsis screening |
| Also known as | Sepsis assessment; SIRS screening; qSOFA screening; sepsis bundle initiation support |
| Category | Emergency / infectious disease recognition |
| Clinical purpose | Identify suspected sepsis early using observation trends, infection cues, and local screening tools—then escalate and support time-sensitive treatment |
| Who performs | Registered nurses and nursing students under supervision; medical and pharmacy teams prescribe bundle elements |
| Estimated time | 5–15 min for full screen and communication; ongoing trending each observation round |
| Clinical settings | Adult inpatient wards, emergency departments, day surgery units with beds, ambulatory infusion units when monitoring |
What is sepsis screening?
Sepsis screening is the structured nursing process of looking for infection plus physiological deterioration—before shock becomes irreversible. It is not a single blood test; it combines accurate vital signs measurement, mental status and perfusion assessment, suspected source review, and your hospital’s early-warning or sepsis screen tool.
Screening turns subjective worry (“something is off”) into actionable data: a rising NEWS-type score, oliguria, hypoxia, or new confusion triggers clinician notification, lactate and blood cultures when ordered, and—when needed—rapid response activation.
NEWS2, qSOFA, and infection suspicion—what nurses use where
Tools overlap but answer different questions. Institutional protocols may vary for exact thresholds and which tool triggers the sepsis pathway—your wall chart and EHR alerts are authoritative.
- Combines temperature, pulse, blood pressure, respiration, SpO₂, and consciousness
- Designed for repeated inpatient scoring and escalation ladders
- Pairs with nurse concern calls when the score rises or the patient “looks septic”
- Commonly taught as two or more of: respiratory rate ≥22/min, altered mentation, systolic BP ≤100 mmHg
- Useful when early-warning scoring is delayed—does not replace full assessment
- Positive screen warrants urgent clinician review per local policy
Even when a score is borderline, suspected or confirmed infection with fever, chills, altered mental status, or tachypnoea pattern plus falling urine output should prompt sepsis screening—not watchful waiting until the next routine round.
Nurse role in time-sensitive sepsis bundle elements
Nurses do not independently diagnose sepsis or select antibiotics, but bedside timing often determines outcomes. After a positive screen, support elements prescribed in your sepsis bundle (names and time targets vary by hospital):
Obtain cultures before antibiotics when protocol requires
Coordinate blood cultures (and source cultures such as urine or wound) with documented collection times—antimicrobials reduce yield if given first without orders allowing delay.
Measure lactate and repeat per order
Arrange lactate and trend results; rising or persistently elevated lactate supports escalation even if fever settles.
Give antimicrobials and fluids as prescribed
Administer ordered broad-spectrum agents such as ceftriaxone on time; monitor for infusion reactions. Fluid responsiveness is assessed by blood pressure, urine output, and clinician review—follow local fluid protocols.
Maintain perfusion and oxygenation
Apply oxygen therapy per protocol; check blood glucose when consciousness changes.
Document each element with clock times so quality teams and handoff nurses can see whether delays occurred.
Source hunt at the bedside
Screening fails when nurses treat numbers without asking where infection might be. A focused source review takes minutes and shapes cultures and imaging orders.
| Source | Bedside cues | Linked topics |
|---|---|---|
| Lungs | Cough, purulent sputum, new oxygen need, focal crackles | Pneumonia, shortness of breath |
| Urinary tract | Dysuria, suprapubic tenderness, cloudy urine, catheter blockages | UTI, urinalysis |
| Skin / wound / line | Erythema, discharge, rigors after line care, non-healing ulcers | peripheral IV care, isolation precautions when indicated |
| Abdomen / surgical site | Distension, focal pain, wound erythema or separation post-op | Postoperative observation trends, malaise |
When to perform sepsis screening
- Every observation round on at-risk inpatients (postoperative, immunocompromised, indwelling devices)
- New or worsening fever or hypothermia
- Unexplained tachycardia, hypotension, or hypoxia symptoms
- New confusion, agitation, or reduced responsiveness—screen for delirium alongside sepsis
- Falling urine output on intake and output monitoring
- Known or suspected infection not improving on treatment
- Before and after invasive procedures when infection risk is high
Limitations and when not to rely on screening alone
There is no patient for whom sepsis screening is “optional” when deterioration is present. Limitations apply to tools, not vigilance:
- Early sepsis may present with normal temperature—especially in older adults or immunosuppression
- qSOFA and early-warning scores can be normal early—repeat assessment and nurse concern matter
- Comfort care or documented treatment ceilings may change escalation goals—verify advance care plans before aggressive bundle elements
When screening is positive, do not defer escalation for routine ward round timing.
Equipment and chart resources
Patient preparation and age-specific cues
Verify identity and compare to baseline
Confirm correct patient; read previous observations and nursing notes for trend—not a single snapshot.
Explain briefly and reduce anxiety
“We’re checking how your body is responding to infection and may need extra tests and treatment quickly.”
Position for accurate observations
Resting, appropriate cuff size, probe on well-perfused finger; avoid talking during respiratory count.
Confusion or “not themselves” may appear before hypotension or fever. Low-grade temperature can still be significant—do not dismiss subtle change.
Use paediatric early-warning tools (for example PEWS) and age-specific reference ranges. Institutional protocols may vary for paediatric sepsis pathways.
Step-by-step sepsis screening workflow
Perform hand hygiene
Standard precautions before assessment and specimen handling.
Apply sepsis screen and early-warning score
Calculate per local tool; note score change from previous round.
Complete focused ABCDE and source review
Follow the ABCDE approach; inspect lines, wounds, urine, and respiratory status.
Escalate when screen positive or concern persists
Notify responsible clinician; activate sepsis pathway and MET/RRT per thresholds.
Support diagnostic and bundle orders
Facilitate lactate, CBC, cultures, imaging, antibiotics, and fluids as prescribed.
Reassess and trend
Increase observation frequency until stable or transferred; evaluate whether interventions improved perfusion and mental status.
Documentation: weak vs defensible sepsis notes
- “Pyrexia—paracetamol given” without trend or escalation
- “Obs stable” when urine output fell and confusion is new
- No culture or antibiotic times when bundle started
- Screen tool result + score change + infection suspicion stated
- Clinician notified time; MET/sepsis pathway named if used
- Lactate value, culture times, antibiotic administration time charted
“09:42 Sepsis screen positive (NEWS 8, was 3 at 06:00). New confusion, BP 96/54, urine 20 mL/2 h, temp 38.6 °C. Dr notified; sepsis pathway activated. Blood cultures 09:50; lactate 3.8 mmol/L; ceftriaxone 10:15 after cultures. Plan: repeat lactate 14:00, hourly obs. Patient more alert at 11:00, BP 108/62.”
Post-screening monitoring
- Trend observations, urine output, lactate, and mental status per order
- Monitor infusion sites and antimicrobial reactions
- Re-screen after any new deterioration—even if earlier screen was negative
- Prepare structured handoff with times and remaining risks
Nursing documentation checklist
Risks of delayed or incomplete screening
- Progression to septic shock and organ failure
- Delayed antimicrobials and higher mortality risk
- Unnecessary ICU admission when late intervention is required
- Missed source control (abscess, line infection, obstructed catheter)
When to escalate immediately
| Finding cluster | Nursing action |
|---|---|
| Hypotension not responding to initial fluids per protocol | Urgent clinician review; critical care referral; consider vasopressor support in appropriate setting |
| Rising lactate or persistent oliguria | Escalate despite improving temperature; repeat screen |
| New hypoxia or airway compromise | ABC support; MET; respiratory review |
| Unresponsive patient | Arrest pathway if no pulse; otherwise urgent MET |
Clinical pearls for nurses
- Trend beats snapshot—compare to the patient’s baseline, not textbook “normal.”
- Chart times for cultures and antibiotics; quality reviewers and families ask “how long?”
- Negative screen does not erase concern if the patient looks septic—reassess and escalate.
- Pair screening with source hunt—treating fever alone without source thinking delays control.
NCLEX practice questions
A post-op fever with falling urine output can outpace the chart banner—practise NCLEX-style clinical judgment practice for sepsis screening: priority action when the screen turns positive, select-all-that-apply infection cues, post-bundle trend interpretation, matrix escalation judgment, documentation cloze, and ordered screening steps (recognise cues → analyse → prioritise → act → evaluate outcomes on the next lactate and observation round).
Unfolding case — surgical ward, 09:40. Mrs. Chen, 68, post laparoscopic cholecystectomy day 3. Night nurse reports she was alert at 06:00. You find her confused to place, skin warm, heart rate 118, blood pressure 96/54 mmHg, respiratory rate 24, SpO₂ 94% on room air, temperature 38.6 °C. Urine output 20 mL since 07:00 (was ~40 mL/h yesterday). Wound dry; no cough. Capillary glucose 5.8 mmol/L.
Answer key & rationale
Frequently asked questions
Is sepsis screening the same as diagnosing sepsis?
No. Nurses screen and escalate using tools and clinical cues; physicians diagnose and prescribe the treatment bundle.
Should I wait for a high fever before screening?
No. Older and immunocompromised patients may have serious infection without high temperature—use mental status, perfusion, and urine output trends.
What is qSOFA used for?
It is a quick bedside screen for organ dysfunction risk outside ICU, often paired with clinical judgment. Local policy defines when it triggers escalation.
Do blood cultures always come before antibiotics?
Many sepsis bundles prioritise cultures before antimicrobials when safe and practical—follow your hospital timing rules and do not delay life-saving treatment when instructed otherwise.
When should I call MET versus only paging the doctor?
Use MET or rapid response when there is acute deterioration, high early-warning scores, or failed initial treatment—many services allow nurse concern activation.
How often should screening repeat?
At least each observation round; increase frequency after a positive screen or until stable per order.
References
- Royal Marsden Manual of Clinical Nursing Procedures — Procedures (RMM Online hub).https://www.rmmonline.co.uk/contents/procedures
- Royal Marsden Manual — Sepsis (Chapter 26).https://www.rmmonline.co.uk/manual/c26-sec-0013
- Royal Marsden Manual — Observations overview including early-warning scoring (Chapter 14).https://www.rmmonline.co.uk/manual/c14-sec-0005
- Royal Marsden Manual — Respiratory assessment and pulse oximetry (Chapter 14).https://www.rmmonline.co.uk/manual/c14-fea-0008
- Royal Marsden Manual — Neurological observations and assessment (Chapter 14).https://www.rmmonline.co.uk/manual/c14-fea-0013
- Centers for Disease Control and Prevention. Sepsis (patient and clinical education).https://www.cdc.gov/sepsis/
- NHS England. Sepsis (national clinical policy context).https://www.england.nhs.uk/ourwork/clinical-policy/sepsis/
- Resuscitation Council UK. The ABCDE approach.https://www.resus.org.uk/library/abcde-approach/
- Resuscitation Council UK. Quality standards: acute care (recognition and response to deterioration).https://www.resus.org.uk/library/quality-standards-cpr/quality-standards-acute-care
- OpenStax. Clinical Nursing Skills (observation and emergency principles).https://openstax.org/books/clinical-nursing-skills/pages/1-introduction
Editorial standards & medical review
About the author: Sid A. Abdala Balal, RN, writes evidence-based nursing education focused on deterioration recognition, infectious disease nursing, and patient safety.
Medical review: This guide is reviewed by Dr. Adam Sayedi, MD, for clinical accuracy of sepsis recognition, escalation, and acute care alignment.
Policies: Medical Review Process · Editorial Policy · Correction Policy