click below
click below
Normal Size Small Size show me how
Healthgates.net
Healthgates.net Pre/post surgery
Question | Answer |
---|---|
What are the four mechanisms of heat loss? | 1. radiation^2. evaporation^3. convection^4. conduction |
What are the three broad causes of body temp alteration? | 1. disruption of hypothalamic function^2. excessive environmental exposure^3. resetting of hypothalamic setpoint |
What is the most common mechanism of temp change in surgical patients? | reset of hypothal setpoint (frequently because of endogenous pyrogen |
How does endogenous pyrogen (IL-1) change hypothal setpoint? | increases synthesis of prostaglandins in the hypothalmus which increases cAMP synthesis and then which resets the setpoint |
how accurate is rectal temp? | it may be higher by 1.4F vice right heart. But is best routine measure |
what is the most likely cause of fever 0-2days postop | atelectasis |
what are the likely causes of fever 2-4days postop? | 1. atelectasis^2. UTI^3. IV line infection^4. pneumonia^5. DVT |
what are the most likely causes of fever 5-10d postop? | 1. wound infection^2. wound dehiscience^3. anastamotic leak |
What should be remembered as a cause of fever in the 5-10 days postop range? | 1. acalculous cholecystitis^2. intra-abdombinal abcess |
what are the criteria for a definitive dx of disseminated fungal sepsis? | 1. culture of organism from tissue^2. endopthalmitis^3. burn wound invasion (per biopsy results)^4. culture of organism from peritoneal fluid |