How much improvement is needed in the FEV1 after bronchodilator therapy before reversibility can be considered present in the patient with obstructive lung disease?

Transfer needles have needles just on one end

Indicate whether the statement is true or false

The MOST significant pregnancy-related changes occur in the uterus. These changes include:

a. an increase in weight of the uterus to approximately 2 pounds. b. an increase in the vascular system of the uterus to about one-fourth of the mother's total blood volume. c. the development of a layer of mucus on the lining of the uterus. d. an increase in the capacity of the uterus to nearly a liter of fluid.