Question

19) Which phase of fever is characterized by high energy production and little energy loss? a) Feeling cold b) Fever delirium c) Feeling hot 20) During the febrile stage of fever (body temperature is equal to set point), how would you characterize heat production and heat loss? a) Increased heat loss b) Decreased heat loss c) Increased heat production d) Decreased heat production e) a and c f) a and d g) b and c h) b and d 21) Read the 4 definitions below that characterize the different physiological stages of fever Use the table below to place the phase of fever in the correct sequence. For each of the phase, characterize the body temperature, the set point and the overall state of the person. a) Chill: sensation of coldness often accompanied by shivering and pallor of the skin b) Defervescence/ diaphoresis: the abatement of a fever as indicated by a decrease in bodily temperature c) Flush: febrile state d) Prodomal: relating to or denoting the period between the appearance of initial symptoms and the full development of a rash or fever. Body temperature Phase of fever Set point Overall state of the patient

Answer 1

19)

ANS: a

20)

ANS: f

When the body is too hot, it decreases heat production and increases heat loss. One way of increasing heat loss is through peripheral vasodilation, the dilation of blood vessels in the skin. When these vessels dilate, large quantities of warmed blood from the core of the body are carried to the skin, where heat loss may occur via radiation, convection, and conduction. Evaporation of fluids from the body also causes heat loss.

21)ANS:

PHASES OF FEVER	BODY TEMPERATURE	SET POINT	OVER ALL STATE OF THE PATIENT
PRODROMAL	Low Grade Fever		The patient will have nonspecific symptoms such as mild headache, fatigue, general malaise, and fleeting aches and pains
CHILL	When the shivering has caused the body temperature to reach the new set point, the shivering stops and the patient again feels warm.		The patient will feel chilled and develop generalized shaking despite his rising temperature.
FLUSH	body temperature is too hot.		Cutaneous vasodilation leads to the skin becoming warm and flushed.
Defervescence.	body temperature returns to normal.		This stage is characterized by sweating. The fever breaks

A person's temperature is determined by the body's thermoregulatory set-point.

The body increases this set-point in response to threats, such as bacterial or viral infections. When the set-point rises, a fever occurs. At this point, the body believes it has hypothermia. It perceives that it is too cold.

As the body works towards meeting the new temperature set-point, symptoms commonly associated with a fever emerge, such as feelings of being cold, increased heart rate, stiffness, and shivering.

ANS: