Sepsis & Infectious Diseases

 

Aims for the Week

Bacterium
  • Recognise the septic patient and list the SIRS criteria
  • Investigate the patient with sepsis of unknown origin
  • Institute the initial management with the 'sepsis 6' and explain the importance of its early delivery
  • Describe the appropriate use of antimicrobial agents
  • Correctly obtain blood cultures using an aseptic technique
  • Discuss the investigations and management of orthopaedic infections
  • Apply the local guidelines for the management of patients exposed to blood borne viruses including needlestick injuries
  • Initiate early management of Meningitis
  • List the differential diagnosis of fever in the returning traveller
  • Describe the course of HIV and its associated complications

 

Sepsis

Patients with infections are some of the most common presentations to the Emergency Department with some suitable for discharge home and others requiring aggressive resuscitation and HDU/ITU management.

Firstly, we need to know our definitions and basic treatment of sepsis.

The elderly or immunocompromised patients may not present with the typical septic response, however they may still be very unwell. Remember to consider sepsis in the elderly patient who is non-specifically unwell or who presents with delirium. These patients may deteriorate rapidly despite, reassuringly, appearing well on initial presentation. A great EM Docs blog discusses some of these issues and provides tips on how not to miss sepsis.

 

Antibiotics

Get to know your local hospital's antimicrobial guidelines.

Please also revise how to take blood cultures to minimise false positives.

 

Also, check out these summaries of the major classes of antibiotics:

  • Aminoglycosides
  • Beta Lactams
  • Macrolides

Life in the fast lane have written a summary of evidence for early antibiotic administration with a discussion of some of the practical problems interfering with early antibiotic provision.

 

Emergency Infections

Septic shock is one of the more dramatic presentations of the septic patient and requires rapid recognition, treatment and admission to critical care. Brush up on your knowledge of its management with this blog from LITFL.

Meningitis is a serious infection that requires prompt treatment to prevent mortality. There are a number of excellent resources to guide treatment.

Necrotising fasciitis is an important and easy to miss soft tissue infection.  This excellent video from EM in 5 will help you spot and treat it.

 
 

Blood Borne Viruses

The emergency department is often the first port of call for those with potential exposure to blood borne viruses whether by needlestick, sexual exposure, or through exposure to other body fluids. Knowing which patients need post-exposure prophylaxis for HIV or immunisation for hepatitis B is very important. Have a look at your local guideline to become familiar with what is required.

  • An Overview of Antiretrovirals
  • HIV Drug Interactions: This website has great factsheets on antiretrovirals and an interaction checker which will tell you whether an antiretroviral interacts with a patient’s medication (highly recommended).

Please note that when starting PEP you must alert the infectious diseases team (or GUM service post sexual exposure) to allow them to arrange follow up for the patient.

The Returning Traveller

Fever in the returning traveller is an important (and vast) topic in infectious diseases that many of us are a little unfamiliar with, but may be presented with in ED. For this reason we wanted to revise some of the more important causes and their geographical distribution.

  • Revise history taking in fever in the returning traveller.

  • This map will give you an idea of which conditions you must consider in travellers from different parts of the globe.

  • Check out a brief overview of malaria, dengue and enteric fever.

  • Review this flowchart for diagnosing viral haemorrhagic fever in returning travellers and the RCEM guidance on ebola for emergency departments.

Malaria Map
 

There is extensive information on this topic on Travax (free registration with an NHS email address as long as practicing in Scotland) and also on Fitfortravel, which also provides good information for patients on diseases and prevention.

 

 

Test Yourself

TEST YOUR KNOWLEDGE of infectious diseases and sepsis WITH OUR QUICK QUIZZES

All mapped to the ACCS & Emergency Medicine HST curriculum!

 

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Hannah Bell