Oxygen will diffuse out of blood during the phase of respiration called:

A. The phrenic nerve is responsible for stimulating the diaphragm to contract and initiate breathing. It originates from the cervical spinal nerves (C3-C5) and plays a critical role in respiration.
B. The pons is a part of the brainstem involved in regulating breathing patterns but is not a nerve itself.
C. The sciatic nerve is the largest nerve in the body, primarily responsible for motor and sensory functions in the lower limbs, not for breathing.
D. The accessory nerve (Cranial Nerve XI) is involved in motor functions of the neck and shoulders, not the diaphragm.

A. Waiting 15 minutes after giving the cough syrup is unnecessary. There's typically no reason to delay giving tablets after a liquid medication unless specifically indicated.
B. Giving the cough syrup between the tablets is not an optimal approach, as it could result in potential interactions or interfere with absorption of the medications.
C. Administering the cough syrup first allows the liquid medication to be absorbed more quickly. Afterward, the tablets can be given with water to facilitate swallowing and ensure proper absorption. This order is generally most effective in promoting absorption and preventing interference between the two types of medication.
D. Administering the tablets first may lead to them being coated with the liquid, potentially delaying their absorption and effectiveness.