Sepsis should be considered if:

systolic blood pressure below 90

Heart rate above 130

respiratory rate increases

skin is discoloured

reduced consciousness

there is an infection elsewhere in the body that could have spread

reduced urinary output

lactate levels are above 2 mmol/L

what to do if sepsis is possible:

Give 3:

High flow O2

IV Fluids

Antibiotics

Take 3:

Blood cultures

general blood sample (lactate)

Rigor is an onset cold-feeling and shivering accompanied by a high temperature or fever (maybe from an infection somewhere in the body)

How is it treated?

You will need: 

50ml syringe

sterile water

dispersable meds in a cup

Use dispersable meds

Flush tube with 20ml sterile water

Give meds via syringe

In between each med, flush a small amount (10ml)

Once finished, flush another 20ml sterlile water

Digoxin helps to make the heartbeat stronger and with a more regular rhythm.

Treats heart failure and Atrial Fibrillation. The Doctor will decide based on the patient as to what heart rate warrants a dose of digoxin. 

Dexamethasone is a cortico-steriod which prevents the release of substance in the body that causes inflammation. 

It should not be taken if you have a fungal infection anywhere in your body as cortico-steroids can reduce your immune system, making you more susceptible to infection.