C).buying all of the toilet paper
If a patient's arterial blood gas indicates that her PaCO2 is 55 mm hg, then she is in the state of hypo-ventilating.
PaCO2 and ventilation are inversely correlated. A high PaCO2 hence indicates poor ventilation. Due to the opposite effects of ventilation, PAO2 and PACO2 are inversely connected. Increased PAO2 and decreased PACO2 are the outcomes of hyperventilation (PACO2 40 mmHg). Decreased PAO2 and hypoxemia result from hypoventilation (PACO2 40 mmHg).
The amount of carbon dioxide in arterial or venous blood is measured by the partial pressure of carbon dioxide (PCO2). It frequently acts as a sign of adequate alveolar ventilation in the lungs. Normally, the value of PCO2 falls between the range of 35 to 45 mmHg, or 4.7 to 6.0 kPa, under normal physiological conditions. Although an arterial blood gas is typically used to measure PCO2, there are additional approaches, such as peripheral venous, central venous, or mixed venous sampling.
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The correct answer is C. Marginal mandibular branch of the facial nerve
Explanation:
The marginal mandibular branch of facial nerve connects in the lower lip and chin, this nerve affects movement and sensations in the bottom lip, the lower corner of the mouth and part of the chin. Due to this, it is common if this nerve is damaged it leads to distorted facial expression, especially a distorted smile, as well as drooling in the bottom lip.
According to this, it is likely the nerve that was damaged in the 45-year-old woman is the marginal mandibular branch of facial nerve because this nerve is the one related to the inner lip and the lower corner of the mouth, and therefore the one that would cause drooling or constant dripping of saliva from the right margin of her mouth in the case it is damaged.