The nurse is caring for a client who is refusing to take their prescribed metformin (Glucophage). The nurse understands that the most common side effects of metformin are:

Nausea, vomiting, diarrhea

Palpitations

Headaches

Heartburn

Answer and Explanation

The Correct Answer is A

Choice A reason: This is correct. Nausea, vomiting, and diarrhea are the most common side effects of metformin, especially when the drug is started or the dose is increased. These side effects occur because metformin can interfere with the absorption of glucose and other nutrients in the intestines, causing osmotic diarrhea. The nurse should advise the client to take metformin with food, start with a low dose and gradually increase it, and drink plenty of fluids to prevent dehydration. The nurse should also monitor the client for signs of lactic acidosis, a rare but serious complication of metformin that causes severe diarrhea, abdominal pain, muscle cramps, and difficulty breathing.

Choice B reason: This is incorrect. Palpitations are not a common side effect of metformin. Palpitations are the sensation of a rapid, irregular, or pounding heartbeat, which can be caused by various factors, such as stress, anxiety, caffeine, nicotine, or heart problems. Metformin does not affect the heart rate or rhythm directly, but it can lower the blood sugar levels, which can trigger the release of adrenaline, a hormone that can cause palpitations. The nurse should check the client's blood sugar levels and advise the client to eat regular meals and snacks, avoid alcohol and caffeine, and report any chest pain or shortness of breath.

Choice C reason: This is incorrect. Headaches are not a common side effect of metformin. Headaches are the pain or discomfort in the head, scalp, or neck, which can be caused by various factors, such as stress, dehydration, or sinus infection. Metformin does not cause headaches directly, but it can lower the blood sugar levels, which can cause headaches as a symptom of hypoglycemia. The nurse should check the client's blood sugar levels and advise the client to eat regular meals and snacks, drink plenty of water, and take painkillers as needed.

Choice D reason: This is incorrect. Heartburn is not a common side effect of metformin. Heartburn is the burning sensation in the chest or throat, which is caused by the reflux of stomach acid into the esophagus. Metformin does not cause heartburn directly, but it can worsen it if the client already has gastroesophageal reflux disease (GERD), a condition where the lower esophageal sphincter is weak or relaxed and allows the acid to flow back. The nurse should advise the client to take metformin with food, avoid spicy or fatty foods, elevate the head of the bed, and take antacids as needed.

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Correct Answer is C

Explanation

Choice A reason: This is incorrect. Taking an antacid with another antacid is redundant and unnecessary. Antacids are medicines that neutralize the acid in the stomach and relieve symptoms of heartburn, indigestion, and gastric ulcers. Taking too much antacid can cause side effects such as diarrhea, constipation, or electrolyte imbalance¹.

Choice B reason: This is incorrect. Taking an antacid as needed to reduce pain is not a good practice. Antacids are not painkillers and do not address the underlying cause of gastric ulcers. Gastric ulcers are sores in the lining of the stomach that can be caused by infection, inflammation, or erosion. Taking an antacid may temporarily relieve the pain, but it does not heal the ulcer or prevent complications. Antacids should be taken regularly as prescribed by the doctor, along with other medicines that treat the cause of the ulcer.

Choice C reason: This is correct. Taking an antacid after taking a proton pump inhibitor (PPI) is a good practice. PPIs are medicines that reduce the production of acid in the stomach and help heal gastric ulcers. However, PPIs may take several hours to work and may not provide immediate relief of symptoms. Taking an antacid after a PPI can help neutralize any remaining acid in the stomach and provide faster symptom relief. However, the antacid should be taken at least 2 hours after the PPI, as the antacid can interfere with the absorption of the PPI.

Choice D reason: This is incorrect. Reducing fluid intake with an antacid is not a good practice. Fluid intake is important for hydration, digestion, and elimination. Reducing fluid intake can cause dehydration, constipation, or kidney problems. Fluid intake does not affect the effectiveness of antacids, as long as the antacid is taken with a glass of water to help dissolve and flush it down the esophagus and into the stomach.

A. Administering half of the scheduled dose of Colace B. Administering the scheduled dose of Colace C. Inserting a rectal tube to prevent excoriation D. Holding the scheduled dose of Colace and notifying the ordering physician

Correct Answer is D

Explanation

Choice A reason: Administering half of the scheduled dose of Colace is not the correct action for the nurse who is caring for a patient who had two loose stools during the night shift. Colace is the brand name of docusate, which is a stool softener that works by increasing the amount of water and fat in the stool, making it easier to pass. Colace is used to treat and prevent constipation, which is a condition of infrequent or hard bowel movements. Colace is not indicated for diarrhea, which is a condition of frequent and loose bowel movements. Administering half of the scheduled dose of Colace may not be enough to prevent constipation, and it may also worsen diarrhea by adding more water and fat to the stool.

Choice B reason: Administering the scheduled dose of Colace is not the correct action for the nurse who is caring for a patient who had two loose stools during the night shift. Colace is the brand name of docusate, which is a stool softener that works by increasing the amount of water and fat in the stool, making it easier to pass. Colace is used to treat and prevent constipation, which is a condition of infrequent or hard bowel movements. Colace is not indicated for diarrhea, which is a condition of frequent and loose bowel movements. Administering the scheduled dose of Colace may not be necessary to prevent constipation, and it may also worsen diarrhea by adding more water and fat to the stool.

Choice C reason: Inserting a rectal tube to prevent excoriation is not the correct action for the nurse who is caring for a patient who had two loose stools during the night shift. A rectal tube is a device that is inserted into the rectum and connected to a drainage bag, which collects the stool and prevents leakage and skin irritation. A rectal tube is used for patients who have fecal incontinence, which is the inability to control bowel movements. A rectal tube is not indicated for patients who have diarrhea, which is a condition of frequent and loose bowel movements. Inserting a rectal tube may not be effective to prevent excoriation, and it may also cause complications such as infection, bleeding, or perforation.

Choice D reason: Holding the scheduled dose of Colace and notifying the ordering physician is the correct action for the nurse who is caring for a patient who had two loose stools during the night shift. Colace is the brand name of docusate, which is a stool softener that works by increasing the amount of water and fat in the stool, making it easier to pass. Colace is used to treat and prevent constipation, which is a condition of infrequent or hard bowel movements. Colace is not indicated for diarrhea, which is a condition of frequent and loose bowel movements. Holding the scheduled dose of Colace may be appropriate to avoid further diarrhea, and notifying the ordering physician may be necessary to determine the cause and the treatment of diarrhea

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The nurse is caring for a client who is refusing to take their prescribed metformin (Glucophage). The nurse understands that the most common side effects of metformin are:

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Naxlex Comprehensive Predictor Exams

A nurse is teaching a client who has a new prescription for an antacid to treat a gastric ulcer. Which of the following statements by the client indicates an understanding of the teaching?

Correct Answer is C

Explanation

A med-surg patient is scheduled to receive docusate (Colace) at 9am. The night nurse advises the patient had two loose stools during her shift. The nurse would anticipate:

Correct Answer is D

Explanation

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