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Harrison- Approach to Symptoms > Fever > Flashcards

Flashcards in Fever Deck (15):
1

Fever of unknown origin

temp> 101 F
Duration > 3 weeks
1 week of inpatient investigation

2

Types of FUO

Classic
Nosocomial
Neutropenic
FUO associated with HIV

3

role of gallium scan

sarcoidosis
crohn disease
pneumocystits carinii

4

Hypothermia is temperature below

95 F

5

Drugs causing hypothermia

Ethanol
barbiturates
phenothiazines
antidepressants
neuromuscular blockers
anesthetics

6

Endocrine causes of hypothermia

hypothyroidism
Diabetes mellitus
hypoglycemia
addison
hypopitutarism

7

Episodic hypothermia

shapiro syndrome
agenesis of carpus callosum

8

Mechanisms of heat loss

radiation(60%)
conduction
convection
respiration
evaporation

9

center for thermoregulation

pre optic anterior hypothalamus

10

Immediate defence of thermoneutrality

autonomic nervous system

11

delayed defence of thermoneutrality

endocrine system

12

tachycardia disproportionate to hypothermia

secondary hypothermia due to hypovolemia,hypoglycemia or toxin overdose

13

persistent hyperventilation with hypothermia

CNS lesion
organic acidosis

14

When should hypothermia pts not resuscitated

Frozen chest wall
K+ more than 10
Temp less than 50-54 F
pH < 6.5
evidence of intravascular thrombus with fibrinogen less than 50 mg/dl

15

non freezing peripheral cold injuries

Chilblain(pernio)
Trench foot (immersion syndrome)