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.

Answer and Explanation

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.

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Correct Answer is C

Explanation

Choice A Reason: This is incorrect. Pulse and blood pressure findings are not reliable indicators of pain, as they can be inﬂuenced by many other factors, such as anxiety, medication, or underlying conditions. They are also not sensitive enough to detect changes in pain intensity or relief.

Choice B Reason: This is incorrect. Scheduled treatments and client illness are not relevant parameters for assessing pain, as they do not reﬂect the current pain experience of the client. They may provide some clues about the possible causes or sources of pain, but they do not measure the pain itself.

Choice C Reason: This is correct. A self-report pain rating scale is the most valid and reliable parameter for assessing pain, as it reﬂects the subjective perception of the client. The nurse should use a simple and appropriate scale, such as a numeric or visual analog scale, and ask the client to point to the number or picture that best represents their pain level.

Choice D Reason: This is incorrect. Behavioral indicators and aﬀect are useful parameters for assessing pain, especially when the client has difficulty communicating verbally, but they are not the first choice. They are more subjective and variable than self-report, and they may be inﬂuenced by cultural or personal factors. They should be used in conjunction with self-report, not instead of it.

A. pH 7.50, HCO3- 20 mEq/L, PaCO2 32 mm Hg B. pH 7.55, HCO3- 30 mEq/L, PaCO2 31 mm Hg C. pH 7.50, HCO3- 26 mEq/L, PaCO2 50 mm Hg D. pH 7.25, HCO3- 19 mEq/L, PaCO2 30 mm Hg

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.

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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?

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