Which condition results from a deficit of HCO3 and pH 7.23?
Metabolic acidosis
Respiratory acidosis
Metabolic alkalosis
Respiratory alkalosis
The Correct Answer is A
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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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Anorexia is a common manifestation of SIADH due to the effects of hyponatremia (low sodium levels) and fluid retention.
B. Edema of fluid overload is not a typical manifestation of SIADH. While SIADH leads to fluid retention due to excess antidiuretic hormone (ADH), the excess fluid is typically intracellular and does not cause peripheral edema as seen in conditions like heart failure or nephrotic syndrome.
C. Vomiting is a common manifestation of SIADH, often related to the effects of hyponatremia, which can irritate the gastrointestinal system.
D. Nausea is also a common symptom of SIADH due to the imbalance of electrolytes, particularly low sodium levels, which can affect the brain and lead to nausea.
Correct Answer is B
Explanation
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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