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
Explanation
A. Inform the primary care provider that the patient may have an infection:
Explanation: The presence of an elevated oral temperature and new onset of fine crackles on lung auscultation suggests a potential respiratory infection, which is a significant concern in a patient with sickle cell disease. Notifying the primary care provider allows for further evaluation and appropriate management of the infection.
B. Liaise with the respiratory therapist and consider high-flow oxygen:
Explanation: While oxygenation may be necessary, especially if the patient is experiencing respiratory distress, addressing the potential infection is the priority. Consulting with the respiratory therapist and considering high-flow oxygen can be part of the overall plan based on the primary care provider's recommendations.
C. Apply supplementary oxygen by nasal cannula:
Explanation: Providing oxygen support may be necessary, but it should be done in consultation with the primary care provider, who can guide the appropriate level of oxygen therapy based on the patient's condition.
D. Administer bronchodilators by nebulizer:
Explanation: Bronchodilators are typically used for conditions like asthma or COPD, and their use might not be the primary intervention in the context of a sickle cell crisis with signs of a potential respiratory infection. Addressing the infection takes precedence, and the primary care provider's input is essential in determining the appropriate course of action.
Correct Answer is A
Explanation
A. "If a vial of insulin will be used up within 21 days, it may be kept at room temperature."
This statement suggests a duration of up to 21 days for room temperature storage after the vial is in use. However, most insulins can typically be stored at room temperature for up to 28 days after initial use. This recommendation might be more conservative than necessary for many types of insulin.
B. "If a vial of insulin will be used up within 2 weeks, it may be kept at room temperature."
This choice suggests a timeframe of 14 days for room temperature storage after opening the vial. However, for many insulins, the recommended duration for room temperature storage after opening is up to 28 days.
C. "If you are going to use up the vial within 1 month, it can be kept at room temperature."
This option extends the timeframe to 1 month for room temperature storage after the vial is in use. However, the generally recommended duration for many insulins is up to 28 days after opening.
D. "If a vial of insulin will be used up within 1 week, it may be kept at room temperature."
This choice suggests a very short duration of 7 days for room temperature storage after opening the vial. Most insulins can typically be stored at room temperature for a longer duration after initial use.
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