A nurse is collecting data from a client who has a respiratory disorder and displays manifestations of hypoxia. Which of the following findings should the nurse expect?

A. Bradypnea, or abnormally slow breathing, is not typically associated with hypoxia. Hypoxia usually triggers an increase in respiratory rate (tachypnea) as the body attempts to take in more oxygen to meet its needs.
B. Cyanosis, a bluish discoloration of the skin and mucous membranes, is a key sign of hypoxia. It occurs when there is insufficient oxygen in the blood, leading to a darker color of deoxygenated hemoglobin. Cyanosis is most commonly observed in the lips, fingertips, and toes.
C. Pallor, or paleness of the skin, can occur in various conditions but is not specific to hypoxia. It is more commonly associated with anemia or shock rather than low oxygen levels in the blood.
D. Bradycardia, or a slower-than-normal heart rate, is not typically a manifestation of hypoxia. Instead, hypoxia often causes tachycardia as the body attempts to increase oxygen delivery to tissues by pumping blood more quickly.

A. "Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.": This statement accurately describes diffusion. Molecules move down their concentration gradient from areas of higher concentration to areas of lower concentration until equilibrium is reached.

B. "Diffusion is the movement of particles between areas of equal concentrations.": Diffusion does not occur between areas of equal concentration as there is no concentration gradient to drive the movement.

C. "Diffusion is the movement of water from an area of higher concentration of water to an area of lower concentration of water.": This describes osmosis, not diffusion. Osmosis specifically refers to the movement of water across a semipermeable membrane.

D. "Diffusion is the movement of particles from an area of lower concentration of particles to an area of higher concentration of particles.": This is incorrect as diffusion occurs from higher to lower concentration, not the reverse.