Sepsis recognition and immediate management: the GP's role in Australia

Sepsis and the GP’s role

Sepsis kills more than 8,700 Australians each year — roughly the same number as breast cancer and colorectal cancer combined. Yet many Australians and some clinicians still think of it as a hospital-only problem. In reality, most cases of sepsis begin in the community, and many patients with developing sepsis first present to a GP, an after-hours clinic, or a telehealth service.

The GP’s role in sepsis is well-defined and manageable: recognise, activate, resuscitate briefly if waiting, and hand over clearly. Do not attempt to manage sepsis in the surgery beyond first-dose antibiotic and initial fluid and oxygen support. The person needs a hospital’s resources — blood cultures, lactate, vasopressors if needed, source control — and attempting to stabilise them in the surgery delays that access.

Australia’s Sepsis Clinical Care Standard 2022, published by the Australian Commission on Safety and Quality in Health Care (ACSQHC), defines seven quality statements covering recognition, time-critical antibiotic delivery, source control, and post-discharge GP-led survivorship care. General practice sits in Quality Statement 1 (recognition) and Quality Statement 7 (survivorship) — both are areas where GP care significantly affects outcomes.

A. Core clinical — the AU general-practice framework

Definition

Per the Sepsis-3 consensus (Singer JAMA 2016), sepsis is life-threatening organ dysfunction caused by a dysregulated host response to infection. The operational definition involves suspected or confirmed infection plus acute organ dysfunction — clinically recognisable through the vital signs changes and altered mental state described below.

Septic shock is the subset of sepsis characterised by hypotension requiring vasopressors to maintain mean arterial pressure ≥65 mmHg, plus lactate above 2 mmol/L despite adequate fluid resuscitation — in-hospital mortality is approximately 40%.

The previous concepts of “severe sepsis” and SIRS-based definitions have been retired. The current framework focuses on organ dysfunction as the distinguishing feature.

Common sources in Australian general practice

The most frequently encountered sepsis sources in GP and after-hours settings:

• Respiratory — community-acquired pneumonia, influenza or COVID-19 with secondary bacterial infection
• Urinary — particularly in older men with prostatic obstruction, in women with ascending pyelonephritis, and in patients with indwelling urinary catheters
• Skin and soft tissue — cellulitis, abscess, necrotising fasciitis (rapidly progressive, severe pain, gas on imaging — surgical emergency)
• Intra-abdominal — cholecystitis, diverticulitis, appendicitis, bowel perforation
• Pregnancy and postpartum — chorioamnionitis, endometritis, septic abortion; any fever in pregnancy is urgent
• Device-related — infected PICC line, joint prosthesis, pacemaker pocket
• Specific Australian contexts — melioidosis (Burkholderia pseudomallei) in the tropical north (NT, Far North QLD) particularly during the wet season, leptospirosis in farming communities, Q fever in abattoir and farm workers

Recognition at the bedside

Respiratory rate (RR) is the most sensitive early vital sign in sepsis and the one most commonly skipped or estimated. Count for 30 seconds, minimum. RR ≥22 breaths per minute is a red flag. In older adults with evolving sepsis, RR may rise before BP falls.

The Sepsis Australia SEPSIS mnemonic provides accessible clinical anchors:

• Slurred speech or confusion
• Extreme shivering or muscle pain
• Passing no urine all day
• Severe breathlessness
• I feel like I might die
• Skin mottled or discoloured

Any of these presentations in a person with known or suspected infection warrants immediate escalation.

Beyond the mnemonic, hard end-points that require immediate Cat-1 transfer: SBP <90 mmHg or MAP <65 mmHg, HR >130 bpm or new arrhythmia, RR >25 or <8 breaths per minute, SpO₂ <92% on air, new confusion or GCS drop ≥2, non-blanching petechial or purpuric rash (meningococcaemia — a life-threatening emergency), cold mottled peripheries with capillary refill above 4 seconds, or anuria.

Differential diagnosis

Condition	Distinguishing features
Anaphylaxis	Rapid onset minutes, urticaria, angioedema, bronchospasm — adrenaline IM 0.01 mg/kg immediately
Pulmonary embolism	Pleuritic chest pain, tachycardia, hypoxia, normal temperature, raised D-dimer
DKA	Known diabetes, BSL >15, ketonaemia, Kussmaul breathing
Adrenal crisis	Known corticosteroid use or Addison’s disease, hyponatraemia, hyperkalaemia
Acute pancreatitis	Epigastric pain, vomiting, lipase >3× ULN
Toxic shock syndrome	Tampon use, post-influenza, diffuse macular rash, rapid cardiovascular collapse
Meningococcaemia	Non-blanching rash — ceftriaxone immediately before transfer, do not wait
Massive haemorrhage	Tachycardia, hypotension, pallor, low haemoglobin, no fever or inflammatory response

B. The evidence on timing of antibiotics

The relationship between antibiotic timing and sepsis mortality has been extensively studied and is nuanced. The 2021 Surviving Sepsis Campaign guidelines support giving antimicrobials within one hour of recognising septic shock. Kumar et al. (Crit Care Med 2006) demonstrated an association between delay in effective antibiotic therapy and increased mortality in septic shock.

However, in sepsis without shock, the evidence for a strict one-hour mandate is less certain. The main risk of aggressive early antibiotic prescribing without adequate workup is over-treatment of sepsis mimics (viral illness, dehydration, PE), with consequent antimicrobial resistance and Clostridioides difficile risk. The Surviving Sepsis 2021 guidelines acknowledge this nuance, recommending a 3-hour window for sepsis without shock.

For GPs, the practical principle is: if septic shock is evident (hypotension, poor perfusion), give the first antibiotic dose now — while calling 000. If sepsis without shock is your assessment, call 000 and give the first antibiotic dose while awaiting the ambulance. Do not delay transfer to monitor further.

SMART trial (NEJM 2018) evidence supports balanced crystalloid (Hartmann’s/Ringer’s lactate) over normal saline for prolonged resuscitation given lower rates of AKI and 30-day mortality. In the surgery, either 0.9% saline or Hartmann’s is appropriate for the initial 500 mL fluid bolus.

C. Immediate management — general practice actions

Step 1 — Recognise

Use a structured tool consistent with your setting. The NSW CEC Adult Sepsis Pathway and Paediatric Sepsis Pathway are available as downloadable clinical tools. Document the time of recognition and the trigger.

Step 2 — Activate

Call 000 (or local emergency transfer). Provide ISBAR pre-notification to the receiving ED: “Cat-1 transfer, suspected sepsis, source [respiratory/urinary/unknown], GCS [x], BP [x/x], HR [x], RR [x], temperature [x], patient is [age] with [key background].”

Step 3 — Resuscitate while waiting

If the ambulance is more than 30 minutes away and IV access is achievable:

• Oxygen titrated to SpO₂ 94–98% (88–92% if COPD or known chronic hypercapnia)
• IV access (two large-bore cannulae if possible); take blood cultures before antibiotics if achievable without delay
• Crystalloid bolus — 500 mL Hartmann’s or 0.9% normal saline over 15 minutes if hypotensive; reassess; repeat if still hypotensive; caution in known heart failure or severe CKD
• First-dose antibiotic per suspected source:
  • Unknown community-acquired source: ceftriaxone 2 g IV (children 50 mg/kg)
  • Severe sepsis or shock with MRSA concern: add vancomycin 25–30 mg/kg IV loading
  • Suspected intra-abdominal: piperacillin-tazobactam 4.5 g IV or meropenem 1 g IV
  • Severe CAP: ceftriaxone 2 g IV plus azithromycin 500 mg PO/IV
  • Meningococcaemia or meningitis: ceftriaxone 2 g IV (or benzylpenicillin 1.2 g IV) — give immediately
  • Top End wet season with pneumonia, abscess, or diabetes: meropenem 1 g IV — ceftriaxone is inadequate for melioidosis
  • Pregnancy or postpartum: piperacillin-tazobactam 4.5 g IV plus clindamycin 600 mg IV
• Paracetamol 1 g for fever and pain

Step 4 — Transfer

Document time of recognition, time of antibiotic, drug and dose, fluid given, vitals trend, and known allergies. This information accompanies the patient and directly influences the hospital’s management decisions.

D. Australian operations

MBS items

MBS Online items applicable to sepsis consultations:

• Items 23/36/44 — Level B, C, D consultations
• Items 597/598/599/600 — after-hours consultations
• Items 24/37/47 — home visits
• Items 19/20 — urgent home visits
• Items 91890/91891 — telehealth (note: sepsis recognition is not appropriate for telehealth; face-to-face assessment with vital signs and skin examination is mandatory)
• Item 11707 — ECG
• Items 965/967 — GPCCMP for post-sepsis chronic disease management
• Items 2715/2717 — Mental Health Care Plan for post-sepsis PTSD, anxiety, or depression

Post-sepsis: Allied health under GPCCMP (5 visits per year; 10 for Aboriginal and Torres Strait Islander patients) for physiotherapy, occupational therapy, exercise physiology, and dietitian review.

Doctor’s bag antibiotics

The PBS Doctor’s Bag list includes ceftriaxone and benzylpenicillin for emergency use. Confirm current contents per pbs.gov.au. Keep IV access equipment, fluid bags (saline or Hartmann’s), and a portable oxygen concentrator or oxygen cylinder accessible.

Mandatory notifications

Several sepsis-causing organisms are notifiable diseases under state Public Health Acts. These typically include meningococcal disease, Legionella, Listeria, Q fever, leptospirosis, melioidosis, brucellosis, invasive group A streptococcal disease (in some states), typhoid, and paratyphoid. Notify the state public health unit as prompted by the clinical and microbiological findings.

E. Special populations

Older adults — classic sepsis signs may be absent. Altered mental state (delirium, uncharacteristic drowsiness, or agitation) and RR elevation are often the only early clues. Blood pressure may appear falsely normal because of baseline hypertension. The threshold to escalate should be lower than in younger adults.

Infants under 3 months — fever ≥38°C requires urgent assessment; apnoea, poor feeding, and irritability may be the only signs of serious bacterial infection. These infants should be transferred to a paediatric emergency department without delay.

Pregnancy and postpartum — sepsis in pregnancy can be rapidly fatal; maternal physiology masks early physiological derangement (higher resting RR and HR are normal in pregnancy; BP may appear falsely low). Any fever with systemic features in pregnancy warrants urgent obstetric assessment. Postpartum sepsis (endometritis, mastitis with abscess, wound infection) is a major cause of maternal mortality.

Aboriginal and Torres Strait Islander adults — maintain a lower threshold for escalation given background prevalence of rheumatic heart disease (streptococcal sepsis disproportionately affects this group), higher rates of undiagnosed diabetes, and patterns of delayed presentation. In remote NT and Far North QLD, melioidosis must be specifically considered during the wet season (November–April) in any unwell patient with fever, particularly those with diabetes, alcohol use disorder, or renal disease.

When to escalate

Immediately call 000 and arrange Cat-1 transfer for:

• Any single red-flag vital sign in a person with infection
• Non-blanching rash with fever — meningococcaemia; give ceftriaxone now
• Fever in a pregnant or postpartum woman with systemic features
• Fever in an infant under 3 months
• Fever in an immunocompromised person (chemotherapy, biologic therapy, asplenia)
• Any suspected septic shock (hypotension, poor perfusion, altered consciousness)

After discharge, refer to:

• Specialist follow-up based on source organism (cardiologist for endocarditis, ID physician for Q fever or melioidosis)
• Immunology if recurrent or unusual organism raises concern for underlying immunodeficiency
• Exercise physiology and physiotherapy for post-sepsis deconditioning

What this article is and is not

This is general health information drawn from the ACSQHC Sepsis Clinical Care Standard 2022, Surviving Sepsis Campaign 2021 guidelines, eTG antimicrobial chapter, AMH, and the Australian Sepsis Network’s general practice education resources. It is not personal medical advice and does not create a doctor–patient relationship. Sepsis is a medical emergency; clinical decisions about antibiotic choice, fluid volumes, and escalation must be based on real-time patient assessment by a clinician.

For consumer resources: HealthDirect — Sepsis, Sepsis Australia patient resources, Better Health Channel — Sepsis. For emergencies: 000.

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Sources cited

1. ACSQHC — Sepsis Clinical Care Standard 2022
2. Surviving Sepsis Campaign 2021
3. Therapeutic Guidelines (eTG) — Antibiotic: sepsis
4. Australian Medicines Handbook
5. Australian Sepsis Network
6. Clinical Excellence Commission NSW — Adult Sepsis Pathway
7. Singer M et al. — Sepsis-3 definitions (JAMA 2016)
8. SMART trial — balanced crystalloid vs saline (NEJM 2018)
9. RACGP — Infectious disease
10. HealthDirect — Sepsis
11. Better Health Channel — Sepsis
12. MBS Online
13. PBS — Doctor’s Bag