A total obstruction of the airway by aspirated material is manifested by:
Hoarse cough
Rapid loss of consciousness
Inflammation of the mucosa
Dyspnea
The Correct Answer is B
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.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Dyspnea is the medical term for shortness of breath or difficulty breathing. It is a subjective sensation of uncomfortable breathing and is the most appropriate term for this client's description.
B. Aspiration refers to the inhalation of food, liquid, or other foreign substances into the airways, which can lead to choking or pneumonia. This does not describe the sensation of shortness of breath.
C. Hemoptysis refers to coughing up blood, which is unrelated to the sensation of shortness of breath described in the question.
D. Orthopnea is shortness of breath that occurs when lying flat, often associated with heart failure. The description in the question does not specifically mention difficulty breathing while lying down.
Correct Answer is A
Explanation
A. Metabolic acidosis occurs when there is a deficit of bicarbonate (HCO3) in the blood, leading to a decrease in pH (below 7.35). A pH of 7.23 indicates acidosis, and the deficit of HCO3 supports a diagnosis of metabolic acidosis.
B. Respiratory acidosis is characterized by an increase in carbon dioxide (CO2) levels, which lowers pH. It is not associated with a bicarbonate deficit.
C. Metabolic alkalosis is characterized by an excess of bicarbonate or a loss of acid, leading to an elevated pH. It is the opposite of metabolic acidosis.
D. Respiratory alkalosis is caused by excessive exhalation of CO2, leading to an increase in pH, not a deficit of bicarbonate.
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