A nurse is reviewing the laboratory results of a client who was an unrestrained passenger in a motor-vehicle crash. The ABG results are as follows: pH 7.32, HCO3 24 mEq/L, PaCO2 48 mm Hg. The nurse should identify the client is experiencing which of the following acid-base imbalances?
Respiratory acidosis
Metabolic acidosis
Respiratory alkalosis
Metabolic alkalosis
The Correct Answer is A
A) Respiratory acidosis: This condition is indicated by a low pH (7.32) and an elevated PaCO2 (48 mm Hg), while HCO3 remains normal (24 mEq/L). Respiratory acidosis occurs when there is an accumulation of carbon dioxide in the blood, usually due to hypoventilation or impaired gas exchange in the lungs.
B) Metabolic acidosis: Metabolic acidosis is characterized by a low pH and a decreased HCO3 level. In this scenario, the HCO3 level is normal, ruling out metabolic acidosis.
C) Respiratory alkalosis: Respiratory alkalosis is indicated by a high pH and a decreased PaCO2. In this case, the pH is low, and the PaCO2 is elevated, which contradicts the characteristics of respiratory alkalosis.
D) Metabolic alkalosis: Metabolic alkalosis would show a high pH and an elevated HCO3 level. Since the pH is low and the HCO3 is normal, this condition does not fit the criteria for metabolic alkalosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A) "After chewing an antacid, wait 1 hour before drinking water.": This is incorrect advice as drinking water after taking an antacid can help wash the medication down and ensure it reaches the stomach effectively. Waiting an hour to drink water is unnecessary and does not benefit GERD management.
B) "Plan to have a bedtime snack each evening.": Having a bedtime snack can exacerbate GERD symptoms by increasing stomach acid production just before lying down. Clients with GERD should avoid eating close to bedtime to minimize symptoms.
C) "Elevate the head of your bed 12 inches.": Elevating the head of the bed helps prevent stomach acid from flowing back into the esophagus during sleep, which can reduce nighttime GERD symptoms. This is a recommended non-pharmacological intervention for managing GERD.
D) "Eat a sugar-free peppermint when symptoms occur.": Peppermint can relax the lower esophageal sphincter, potentially worsening GERD symptoms by allowing stomach acid to reflux into the esophagus. Therefore, peppermint is not recommended for managing GERD symptoms.
Correct Answer is C
Explanation
A) "I should limit my weightlifting to three times per week.": While weightlifting can be beneficial for bone health, it is generally recommended to engage in weight-bearing and resistance exercises more frequently than three times a week for optimal bone density. The frequency and type of weightlifting should be tailored to individual needs and safety considerations.
B) "I can continue to horseback ride.": Horseback riding, especially if not done carefully, poses a risk of falls and fractures, which can be dangerous for individuals with osteoporosis. Activities with a higher risk of injury should be avoided or approached with caution.
C) "I will go walking with a friend around our neighborhood.": Walking is a low-impact, weight-bearing exercise that promotes bone health and mobility without high risk. It is a suitable and recommended activity for individuals with osteoporosis to help maintain bone density and prevent falls.
D) "I will join my brother at his community aerobics class.": Aerobics classes may involve high-impact exercises and movements that could increase the risk of fractures or falls in individuals with osteoporosis. Low-impact, bone-strengthening activities are generally recommended instead.
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