Which condition results from a deficit of HCO3 and pH 7.23?

A. Metabolic acidosis is characterized by a low pH and a decrease in bicarbonate, but it is not typically associated with hypokalemia. In fact, acidosis may cause potassium to shift out of cells, increasing serum potassium levels.

B. Metabolic alkalosis is often associated with hypokalemia because the body compensates for alkalosis by shifting potassium into cells, leading to a lower serum potassium level. This is commonly seen with conditions like vomiting or the overuse of diuretics.

C. Hyperchloremia refers to elevated chloride levels, which may be associated with metabolic acidosis, but it is not directly linked to hypokalemia.

D. "None of the above" is incorrect because metabolic alkalosis is a known condition associated with hypokalemia.

A. A hoarse cough may occur with partial airway obstruction, but it is not a typical sign of a complete obstruction. A total obstruction would more likely lead to inability to cough effectively.

B. A total obstruction of the airway, such as from aspirated material, can lead to rapid loss of consciousness due to the lack of oxygen reaching the brain. This is a critical emergency.

C. Inflammation of the mucosa is a response to irritation or injury but would not be the primary manifestation of a total airway obstruction.

D. Dyspnea (difficulty breathing) is common with airway obstructions, but in the case of total obstruction, the person would be unable to breathe at all, leading to more severe signs like loss of consciousness.