Nursing textbooks medical-surgical practice questions set 38

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The nurse should identify patients at risk for hypercalcemia, assess for signs and symptoms of hypercalcemia, and educate the patient and family. The nurse should teach at-risk patients to recognize and report signs and symptoms of hypercalcemia and encourage patients to consume 2 to 4 L of fluid daily unless contraindicated by existing renal or cardiac disease. Also, the nurse should explain the use of dietary and pharmacologic interventions, such as stool softeners and laxatives for constipation, and advise patients to maintain nutritional intake without restricting normal calcium intake.

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Prophylactic surgery is used when there is an extensive family history and nonvital tissues are removed. Salvage surgery is an additional treatment option that uses an extensive surgical approach to treat the local recurrence of a cancer after the use of a less extensive primary approach. Palliative surgery is performed in an attempt to relieve complications of cancer, such as ulceration, obstruction, hemorrhage, pain, and malignant effusion. Reconstructive surgery may follow curative or radical surgery in an attempt to improve function or obtain a more desirable cosmetic effect.

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Intravenous chemotherapy can cause local tissue destruction if it extravasates into the surrounding tissues. Peripheral IV lines are more prone to this than centrally placed lines. The most important intervention is prevention, so the nurse should check hourly to ensure the IV site is patent, or more frequently depending on facility policy. Education and monitoring for side effects such as nausea are important for all clients receiving chemotherapy. Warm packs may be helpful for comfort, but if the client reports the IV site is painful, this is not the most appropriate action.

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Sulfonylureas exert their primary action by directly stimulating the pancreas to secrete insulin and therefore require a functioning pancreas to be effective. Biguanides inhibit the production of glucose by the liver and are in used in type 2 diabetes to control blood glucose levels. Thiazolidinediones enhance insulin action at the receptor site without increasing insulin secretion from the beta cells of the pancreas. Alpha glucosidase inhibitors work by delaying the absorption of glucose in the intestinal system, resulting in a lower postprandial blood glucose level.

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The alpha-glucosidase inhibitors, acarbose (Precose) and miglitol (Glyset), produce their glucose-lowering effects by delaying the digestion and absorption of carbohydrates in the intestine. Glimepiride is a sulfonylurea. Metformin sensitizes the liver to circulating insulin levels and reduces hepatic glucose production. Pioglitazone decreases insulin resistance and increases insulin sensitivity by modifying several processes, resulting in decreased hepatic glucogenesis (formation of glucose from glycogen) and increased insulin-dependent muscle glucose uptake.

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A glucose tolerance test in combination with a GH measurement is the most reliable method of confirming acromegaly. Ingestion of a bolus of glucose should lower GH levels, but GH levels remain elevated in persons with acromegaly. Increased blood levels of IGF-1 can also indicate acromegaly in nonpregnant women, they typically have IGF-1 levels two to three times higher than normal in pregnant women. A serum glucose level is not an indicator of acromegaly. Growth hormone levels and bone radiographs may support the diagnosis but are not reliable indicators.

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The use of advanced practice nurses who have been educated in geriatric nursing concepts has proved to be very effective when dealing with the complex care needs of an older patient. When best practices are used and current scientific knowledge applied to clinical problems, significantly less deterioration occurs in the overall health of aging patients. This does not necessarily mean that patients are happier in long-term care than at home, that they recover more quickly from acute illnesses, or greater interaction occurs between younger and older adults.

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Older adults often lose their sense of thirst. Since they should drink 1 to 2 liters of water a day, the best remedy is to have the older adult drink something each hour or two, whether or not they are thirsty. Cutting some sodium from the diet will not address this issue. Although dehydration can cause incontinence from the urine irritation of concentrated urine, this information will not help prevent the problem of dehydration. Instructing the client to take a diuretic in the morning rather than in the evening also will not directly address this issue.

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Infection and other stressors increase blood glucose levels and the patient will need to test blood glucose frequently, treat elevations appropriately with lispro insulin, and call the health care provider if glucose levels continue to be elevated. Discontinuing the glargine will contribute to hyperglycemia and may lead to diabetic ketoacidosis (DKA). Decreasing carbohydrate or caloric intake is not appropriate because the patient will need more calories when ill. Glycosylated hemoglobin is not used to test for short-term alterations in blood glucose.

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The patient's symptoms suggest mild hypocalcemia. The symptoms of hypocalcemia will be temporarily reduced by having the patient breathe into a paper bag, which will raise the PaCO2 and create a more acidic pH. The muscle relaxant will have no impact on the ionized calcium level. Although severe hypocalcemia can cause laryngeal stridor, there is no indication that this patient is experiencing laryngeal stridor or needs oxygen. Calcium supplements will be given to normalize calcium levels quickly, but oral supplements will take time to be absorbed.