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 D
Explanation
A. Avoid the use of moisturizing lotions.
This statement is not a priority instruction. Moisturizing lotions, especially those designed for diabetic foot care, can help prevent dry skin and complications. However, it's crucial to choose appropriate, diabetes-friendly moisturizers.
B. Examine feet weekly for redness, blisters, and abrasions.
This is an important and relevant instruction. Regular foot inspections help detect any signs of injury or infection early, preventing complications, especially for individuals with peripheral neuropathy.
C. Dry feet vigorously after each bath.
This statement is not advisable. Vigorous drying can potentially harm the skin, especially for individuals with diabetes. A gentle and thorough drying is recommended to prevent skin damage.
D. Avoid hot-water bottles and heating pads.
This is a priority instruction. Patients with peripheral neuropathy may have reduced sensation in their feet, making them more susceptible to burns. Avoiding sources of excessive heat helps prevent injuries.
Correct Answer is B
Explanation
A. "The test needs to be repeated following a 12-hour fast."
This statement is not accurate. The hemoglobin A1c test does not require fasting. It reflects the average blood glucose levels over the past two to three months and is not affected by short-term changes in diet or fasting.
B. "It tells us about your sugar control for the last 3 months."
This statement is accurate. The hemoglobin A1c test provides information about the average blood glucose levels over the past two to three months. It's a valuable tool for assessing long-term glycemic control.
C. "It looks like you aren't following the prescribed diabetic diet."
The hemoglobin A1c test reflects overall glycemic control over several months and is not solely influenced by recent dietary habits. While diet plays a role in diabetes management, this statement oversimplifies the interpretation of the A1c result.
D. "Your insulin regimen needs to be altered significantly."
While a high A1c may indicate a need for adjustments in the treatment plan, the decision to alter the insulin regimen should be based on a comprehensive assessment of the patient's overall diabetes management, including lifestyle, diet, and other factors. It may not solely be determined by the A1c result.
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