A nurse is reviewing the laboratory results of a client who is postoperative and has a respiratory rate of 7/min. The arterial blood gas (ABG) values include: pH 7.22 PaCO2 68 mm Hg Base excess -2 PaO2 78 mm Hg Oxygen saturation 80% Bicarbonate 28 mEq/L. Which of the following interpretations of the ABG values should the nurse make?
Metabolic acidosis
Respiratory acidosis
Metabolic alkalosis
Respiratory alkalosis
The Correct Answer is B
A. Metabolic acidosis
Metabolic acidosis is characterized by a low pH (< 7.35) and a decreased bicarbonate level (< 22 mEq/L). In this scenario, the pH is low (7.22), but the bicarbonate level is elevated (28 mEq/L), which does not support a diagnosis of metabolic acidosis.
B. Respiratory acidosis
Respiratory acidosis occurs when there is an accumulation of carbon dioxide (PaCO2 > 45 mm Hg), leading to a decrease in pH (< 7.35). In this case, the pH is low (7.22), and the PaCO2 is elevated (68 mm Hg), consistent with respiratory acidosis.
C. Metabolic alkalosis
Metabolic alkalosis is characterized by a high pH (> 7.45) and an elevated bicarbonate level (> 26 mEq/L). In this scenario, the pH is low (7.22), and the bicarbonate level is also elevated (28 mEq/L), which does not support a diagnosis of metabolic alkalosis.
D. Respiratory alkalosis
Respiratory alkalosis occurs when there is a decrease in carbon dioxide (PaCO2 < 35 mm Hg), leading to an increase in pH (> 7.45). In this case, the pH is low (7.22), and the PaCO2 is elevated (68 mm Hg), which is not consistent with respiratory alkalosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Position the client on the nonoperative side.
Positioning the client on the nonoperative side after a pneumonectomy may not be the best choice. The positioning of the client post-pneumonectomy should be based on factors such as the individual's comfort, respiratory status, and any specific instructions from the healthcare provider. Placing the client on the nonoperative side may inadvertently put pressure on the surgical site, leading to discomfort or potential complications.
B. Monitor respiratory status every 8 hr.
Monitoring respiratory status every 8 hours is not sufficient for a client post-pneumonectomy. After such a major surgical procedure, respiratory status should be closely monitored and assessed more frequently, especially in the immediate postoperative period. This frequency allows for the early detection of any signs of respiratory distress, such as decreased oxygen saturation, dyspnea, or abnormal breath sounds, as well as complications like pneumothorax or atelectasis.
C. Elevate the head of the bed to a 15° angle.
Elevating the head of the bed to a 15° angle is a general recommendation for clients postoperative to promote respiratory function and reduce the risk of aspiration. However, after a pneumonectomy, the positioning of the client may vary based on their individual condition and surgical approach. It's important to follow the healthcare provider's specific instructions regarding positioning for optimal recovery. The angle of elevation may need to be adjusted based on the client's comfort and respiratory status.
D. Encourage the client to splint the incision when coughing.
After a pneumonectomy, it's crucial to encourage the client to splint the incision when coughing. Splinting the incision with a pillow or hands helps to reduce pain and prevent strain on the surgical site, promoting healing and minimizing the risk of complications such as wound dehiscence (opening of the surgical incision).
Correct Answer is A
Explanation
A. Fatigue
When collecting data from a client with pulmonary tuberculosis (TB), the nurse should expect to observe fatigue as one of the common manifestations. TB is a bacterial infection caused by Mycobacterium tuberculosis, primarily affecting the lungs. Fatigue is a typical symptom experienced by individuals with TB, often resulting from the body's immune response to the infection, as well as the systemic effects of inflammation and tissue damage caused by the bacteria.
B. High fever in the early morning
While fever is a symptom of tuberculosis, it may not necessarily occur specifically in the early morning. Fever associated with TB can occur at any time of the day and may persist for weeks to months. The pattern of fever can vary among individuals and may not consistently occur in the early morning.
C. Edema
Edema, or swelling due to fluid accumulation in tissues, is not typically associated with pulmonary tuberculosis. Edema is more commonly observed in conditions such as heart failure, renal failure, or liver disease, rather than in TB.
D. Increased appetite
Increased appetite is not a typical finding in pulmonary tuberculosis. In fact, individuals with active TB infection often experience appetite loss and unintended weight loss due to factors such as decreased food intake, metabolic changes, and systemic inflammation associated with the infection.
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