A chemical substance that is released into the blood by a gland and that controls or affects processes in other glands or body systems is a(n):
A) enzyme.
B) hormone.
C) leukotriene.
D) neurotransmitter.
Question 2
Which of the following statements made by an EMT shows he correctly understands capillary refill?
A) Capillary refill is a reliable sign of perfusion in adults, but not as reliable in infants and children.
B) Red flushed skin in the adult is a normal finding when assessing capillary refill.
C) A capillary refill of 4 or more seconds in any age patient indicates that he or she is well oxygenated.
D) For a capillary refill test to be normal for a child, it must be assessed at room temperature and be less than 2 seconds.
Blood PH Curve Hemoglobin
kidney blood flow
Sources and Amounts of Oil Released into North American Marine Waters
Dopamine cannot cross the blood–brain barrier. Levodopa, its precursor, can. Once levodopa crosses ...
Calculation of the probabilities in a mating involving the ABO blood type
The outcome of a mating between individuals heterozygous at two genes determining their ABO blood ty