A 65 year old man presents with a tender, swollen, red and painful leg. He is delirious, and has a high fever, tachycard

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A 65 year old man presents with a tender, swollen, red
and painful leg. He is delirious, and has a high fever, tachycardia
and low blood pressure.
Describe how bacteria interact with human tissues and
the immune system to cause a skin infection (cellulitis).
(33%)
Describe the changes in his physiology (and their cause)
that have led to delirium and low blood pressure (33%)
Describe the microbiological tests, nursing
monitoring/care and treatment that this man requires
(34%)