A patient with a longstanding diagnosis of generalized anxiety disorder presents to the emergency room. The triage nurse notes upon an assessment that the patient is hyperventilating. The triage nurse is aware that hyperventilation is the MOST common cause of which acid-base imbalance?
Respiratory Acidosis
Metabolic Alkalosis
Metabolic Acidosis
Respiratory Alkalosis
The Correct Answer is D
A. Respiratory Acidosis:
Explanation: Respiratory acidosis occurs when there is inadequate elimination of carbon dioxide, leading to an increase in PaCO2 and a decrease in blood pH. This is typically associated with conditions that impair ventilation.
B. Metabolic Alkalosis:
Explanation: Metabolic alkalosis is characterized by an elevated blood pH and bicarbonate (HCO3-) concentration. It is not directly caused by hyperventilation but is often associated with conditions such as excessive vomiting or excessive bicarbonate intake.
C. Metabolic Acidosis:
Explanation: Metabolic acidosis is characterized by a decrease in blood pH and bicarbonate concentration. It is not directly caused by hyperventilation but may result from conditions such as diabetic ketoacidosis or lactic acidosis.
D. Respiratory Alkalosis:
Explanation: Hyperventilation is the most common cause of respiratory alkalosis. During hyperventilation, there is an excessive loss of carbon dioxide (CO2) through rapid breathing, leading to a decrease in the partial pressure of carbon dioxide (PaCO2) in the blood. This results in an increase in blood pH, causing an alkalotic state.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","E"]
Explanation
A. Buffalo hump:
Explanation: A buffalo hump is associated with excess cortisol, which is not a typical manifestation of Addison's disease. Instead, patients with Addison's disease may experience weight loss and muscle wasting.
B. Hyponatremia:
Explanation: Correct. Hyponatremia (low sodium levels) can occur in Addison's disease due to the loss of aldosterone, which plays a role in sodium and water balance.
C. Decreased glucose level:
Explanation: Correct. Addison's disease can lead to hypoglycemia (low blood glucose levels) because cortisol, which is important for maintaining blood glucose, is deficient.
D. Weight gain:
Explanation: Weight gain is not a typical manifestation of Addison's disease. Instead, weight loss and muscle wasting may occur.
E. Craving for salt:
Explanation: Correct. Addison's disease can lead to salt craving, as aldosterone deficiency results in increased sodium loss and potassium retention.
Correct Answer is B
Explanation
A. Increase the intake of vitamin E to enhance absorption:
While vitamin C can enhance iron absorption, vitamin E does not play a significant role in iron absorption. Vitamin C-rich foods can be advised to enhance iron absorption.
B. Iron will cause the stools to darken in color:
This statement is accurate. Iron supplements can cause stools to appear darker in color, often black or greenish-black. This change in stool color is normal and expected when taking iron supplements.
C. Take the iron with dairy products to enhance absorption:
Dairy products can inhibit iron absorption. It's better to take iron supplements with vitamin C-rich foods or orange juice to enhance absorption.
D. Limit foods high in fiber due to the risk for diarrhea:
Fiber-rich foods do not necessarily need to be limited when taking iron supplements. However, some individuals may experience constipation when taking iron supplements, in which case increasing fluid intake and dietary fiber can help alleviate constipation.
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