A nurse is caring for a client who has bleeding esophageal varices and is being treated with a Sengstaken-Blakemore tube. Which of the following actions should the nurse perform?
Deflate the balloons for 5 min every 2 hr to prevent tissue necrosis.
Keep the head of the bed flat at all times to prevent the development of shock.
Maintain constant observation while the balloons are inflated.
Suction the tube every 2 hr and as needed to maintain patency.
Suction the tube every 2 hr and as needed to maintain patency.
The Correct Answer is C
Choice A Reason: This is incorrect. The balloons should not be deflated without a physician's order, as this can cause rebleeding or aspiration.
Choice B Reason: This is incorrect. The head of the bed should be elevated to 30 to 45 degrees to reduce pressure on the balloons and prevent gastric reflux.
Choice C Reason: This is correct. The nurse should monitor the client closely for signs of complications, such as airway obstruction, aspiration, or balloon rupture. The nurse should also keep scissors at the bedside to cut the tube and release the balloons in case of an emergency.
Choice D Reason: This is incorrect. The tube should not be suctioned, as this can damage the mucosa and cause bleeding. The nurse should only aspirate gastric contents through the gastric lumen to decompress the stomach.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A Reason: This is incorrect because these values indicate respiratory alkalosis, which is caused by hyperventilation or excess loss of carbon dioxide (PaCO2). Respiratory alkalosis increases the blood pH and decreases the HCO3- level.
Choice B Reason: This is incorrect because these values indicate metabolic alkalosis, which is caused by excess intake or retention of bases or loss of acids. Metabolic alkalosis increases the blood pH and the HCO3- level.
Choice C Reason: This is incorrect because these values indicate respiratory acidosis, which is caused by hypoventilation or excess retention of carbon dioxide (PaCO2). Respiratory acidosis decreases the blood pH and increases the HCO3- level.
Choice D Reason: This is correct because these values indicate metabolic acidosis, which is a common complication of chronic kidney disease. These values indicate metabolic acidosis, which is a common complication of chronic kidney disease. Metabolic acidosis occurs when the kidneys are unable to excrete excess acids or retain enough bicarbonate (HCO3-), which is a base that buffers the blood pH. As a result, the blood pH decreases and becomes more acidic. The normal range for blood pH is 7.35 to 7.45, for HCO3- is 22 to 26 mEq/L, and for PaCO2 is 35 to 45 mm Hg.
Correct Answer is B
Explanation
Choice a) is incorrect because vesicles on the skin are a sign of cutaneous anthrax, not inhalation anthrax. Cutaneous anthrax is caused by direct contact with anthrax spores through a break in the skin. It causes a painless, black, necrotic lesion on the affected area.
Choice b) is correct because respiratory failure is a sign of inhalation anthrax, which is the most deadly form of anthrax. Inhalation anthrax is caused by breathing in anthrax spores that enter the lungs and spread to the bloodstream. It causes severe breathing problems, chest pain, shock, and death.
Choice c) is incorrect because sloughing of skin is a sign of necrotizing fasciitis, not inhalation anthrax. Necrotizing fasciitis is a rare bacterial infection that destroys the soft tissue under the skin. It causes severe pain, swelling, redness, blisters, and gangrene.
Choice d) is incorrect because flu-like symptoms are not specific to inhalation anthrax. Flu-like symptoms can be caused by many other conditions, such as influenza, common cold, or COVID-19. Flu-like symptoms include fever, cough, sore throat, headache, and muscle aches.
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