PRE-COLLECTION VARIABLES

Question 1

Cortisol:

Answer 1

higher in the morning (peaks at 4-6 AM)

Question 2

• Blood parasites: multiple smears

Answer 2

(8-12 hours interval for 2-3 days)

Question 3

for Brugia and Wuchereria

Answer 3

best at night (after 8 PM)

Question 4

for Loa loa

Answer 4

midday

Question 5

• Malaria:

Answer 5

between chills

Question 6

Diet:

Answer 6

glucose and triglycerides increase after eating

Question 7

• Stress:

Answer 7

increases ACTH, cortisol, and catecholamines

Question 8

Posture
• Upright:

Answer 8

increases hydrostatic pressure which increases protein concentration

Question 9

Posture

• From supine to sitting position:

Answer 9

increases hemoglobin, hematocrit, and RBC count

Question 10

• Prolonged tourniquet application may increase

Answer 10

serum enzymes
proteins
protein-bound substances

Question 11

• Patients should be advised to avoid… 24 hours prior to blood collection

Answer 11

changes in the diet
consumption of alcohol
strenuous exercise