A client with a history of takes about 15 antacid tablets per day. The nurse understands that this client is at risk for:
metabolic alkalosis.
respiratory alkalosis.
metabolic acidosis.
respiratory acidosis.
The Correct Answer is A
A. Metabolic alkalosis is characterized by an elevation of the bicarbonate (HCO3) levels in the blood, leading to an increase in pH above the normal range (7.35-7.45). Antacid tablets typically contain compounds such as calcium carbonate, magnesium hydroxide, or aluminum hydroxide, which can neutralize stomach acid (hydrochloric acid). Chronic ingestion of large amounts of antacids, as in the case of this client taking approximately 15 tablets per day, can result in excessive bicarbonate intake, leading to metabolic alkalosis.
B. Respiratory alkalosis occurs when there is a decrease in carbon dioxide (CO2) levels in the blood, leading to an increase in pH above the normal range. Antacid tablets do not directly affect respiratory function or CO2 levels, so respiratory alkalosis is unlikely to occur as a result of antacid ingestion.
C. Metabolic acidosis is characterized by a decrease in bicarbonate (HCO3) levels in the blood, leading to a decrease in pH below the normal range. In the context of antacid ingestion, metabolic acidosis is less likely to occur. However, if the antacids contain compounds that are absorbed systemically and excreted by the kidneys (such as aluminum-containing antacids), they may lead to renal dysfunction or electrolyte imbalances, which could potentially contribute to metabolic acidosis.
D. Respiratory acidosis occurs when there is an increase in carbon dioxide (CO2) levels in the blood, leading to a decrease in pH below the normal range. Antacid tablets do not directly affect respiratory function or CO2 levels, so respiratory acidosis is unlikely to occur as a result of antacid ingestion.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. In respiratory alkalosis, the pH is elevated (alkalotic), the PaCO2 (partial pressure of carbon dioxide) is decreased (hypocapnia), and the HCO3 (bicarbonate) level may be within normal limits or slightly decreased due to compensatory mechanisms. In this option, the pH is elevated (7.54), the PaCO2 is decreased (25), and the HCO3 level is within normal limits (24). These findings support respiratory alkalosis.
B. pH 7.50, PaCO2 40, HCO3 28: In this option, the pH is elevated (7.50), the PaCO2 is within normal limits (40), and the HCO3 level is elevated (28). These findings are not consistent with respiratory alkalosis. Instead, they suggest metabolic alkalosis, where both the pH and bicarbonate levels are elevated.
C. pH 7.35, PaCO2 35, HCO3 22: In this option, the pH is within normal limits (7.35), the PaCO2 is within normal limits (35), and the HCO3 level is within normal limits (22). These findings are not consistent with respiratory alkalosis.
D. pH 7.32. PaCO2 48, HCO3 24: In respiratory alkalosis, the pH is elevated (alkalotic), the PaCO2 is decreased (hypocapnia), and the HCO3 level may be within normal limits or slightly decreased due to compensatory mechanisms. In this option, the pH is within normal limits (7.32), the PaCO2 is elevated (48), and the HCO3 level is within normal limits (24). These findings are not consistent with respiratory alkalosis.
Correct Answer is A
Explanation
A. Positioning the primary IV solution bag higher than the piggyback medication bag creates a pressure gradient, allowing the primary solution to infuse first. Once the primary solution has finished, the secondary piggyback medication automatically starts infusing. This setup ensures that the primary solution is fully infused before the piggyback medication begins.
B. Placing the primary IV solution bag lower than the piggyback medication bag is not the standard practice. This setup would create a pressure gradient that could result in the piggyback medication infusing before the primary solution, which is not desirable. It could lead to incomplete infusion of the primary solution and compromise the effectiveness of the treatment.
C. Positioning the primary IV solution bag at the same height as the piggyback bag does not create a pressure gradient for sequential infusion. As a result, both solutions would flow at the same rate, and it would be challenging to control the order of infusion. This setup is not appropriate for administering IV antibiotics via piggyback because it does not ensure the proper sequence of infusion.
D. The height of the IV solution relative to the insertion site is essential for proper infusion and preventing complications such as infiltration or phlebitis. Ideally, the IV solution should be hung at a height that allows for a gentle flow of fluid into the vein without causing excessive pressure or backflow. Placing the IV solution lower than the insertion site helps facilitate gravity-assisted flow into the vein.
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