A nurse evaluates the following arterial blood gas values in a patient: pH 7.48, PaO 98 mm Hg, PaCO 28 mm Hg, and HCO - 22 mEq/L (22 mmol/L). Which patient condition does the nurse correlate with these results?
Diarrhea and vomiting for 36 hours
Chronic obstructive pulmonary disease (COPD)
Anxiety-induced hyperventilation
Diabetic ketoacidosis and chronic obstructive pulmonary disease (COPD)
The Correct Answer is C
A. Diarrhea and vomiting for 36 hours:
Diarrhea and vomiting can lead to metabolic acidosis due to loss of bicarbonate and increased hydrogen ion concentration in the blood. However, the ABG values provided indicate respiratory alkalosis (high pH and low PaCO2), which is not consistent with metabolic acidosis caused by diarrhea and vomiting. Therefore, this choice does not correlate with the ABG values.
B. Chronic obstructive pulmonary disease (COPD):
COPD is a respiratory condition characterized by airflow limitation and increased airway resistance. It can lead to respiratory acidosis due to retention of carbon dioxide (PaCO2 levels would be elevated). The ABG values in the scenario show respiratory alkalosis (low PaCO2), which is the opposite of what would be expected in COPD. Therefore, this choice does not correlate with the ABG values provided.
C. Anxiety-induced hyperventilation:
Anxiety-induced hyperventilation is a common cause of respiratory alkalosis. During hyperventilation, there is excessive elimination of carbon dioxide (PaCO2 levels decrease), leading to an increase in pH (alkalosis). The ABG values in the scenario show a high pH (7.48) and low PaCO2 (28 mm Hg), consistent with respiratory alkalosis seen in hyperventilation due to anxiety.
D. Diabetic ketoacidosis and chronic obstructive pulmonary disease (COPD):
Diabetic ketoacidosis (DKA) is a metabolic condition characterized by hyperglycemia, ketosis, and metabolic acidosis (low pH and low bicarbonate levels). COPD, as mentioned earlier, can lead to respiratory acidosis due to retained carbon dioxide. Neither of these conditions correlates with the ABG values provided, which show respiratory alkalosis (high pH and low PaCO2). Therefore, this choice does not correlate with the ABG values.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Superficial infections are caused by fungus.
While fungal infections can indeed cause superficial skin infections like tinea (ringworm) or candidiasis, they are not the common factor for the etiology and pathophysiology of folliculitis, furuncles, and carbuncles. These conditions primarily involve bacterial infections of the hair follicles, typically caused by Staphylococcus aureus bacteria.
B. Parasites get underneath the skin.
Parasitic infections can cause various skin conditions, but they are not the common factor for folliculitis, furuncles, and carbuncles. These conditions are specifically related to bacterial infections of the hair follicles rather than parasitic infestations.
C. Hair follicles are infected or inflamed.
This is the correct choice and the common factor for folliculitis, furuncles, and carbuncles. All three conditions involve the infection or inflammation of hair follicles, primarily due to Staphylococcus aureus bacteria. Folliculitis is the inflammation of one or more hair follicles, furuncles are deeper infections involving the hair follicle and surrounding tissue, and carbuncles are clusters of interconnected furuncles with deeper tissue involvement.
D. There is an allergic response to an allergen.
An allergic response to an allergen does not play a role in the etiology and pathophysiology of folliculitis, furuncles, and carbuncles. These conditions are primarily infectious in nature, involving bacterial colonization and subsequent inflammation of the hair follicles rather than an allergic response.
Correct Answer is D
Explanation
A. Elevation of the head of the bed by 30 degrees: While elevation of the head of the bed may be necessary for certain medical conditions, it is not the priority concern in a client with a gasoline burn. Decontamination and assessment of the burn injury take precedence.
B. Determining the amount of gasoline that the client encountered: While it's important to gather information about the circumstances of the injury, including the amount of gasoline involved, this is not the priority concern at the immediate moment. Decontamination and assessment of the burn take precedence over obtaining historical information.
C. Asking the client when they last ate a meal: While assessing the client's nutritional status and potential need for dietary interventions is important, it is not the priority safety concern in the context of a gasoline burn. Decontamination and assessment of the burn injury are more critical at this time.
D. Decontamination of the client
When a client sustains a gasoline burn, the priority safety concern is to decontaminate the client. Gasoline can cause chemical burns and can be absorbed through the skin, leading to systemic effects. Therefore, it's crucial to remove any remaining gasoline from the client's skin and clothing to prevent further absorption and minimize the risk of complications.
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