The nurse is teaching a client who has pernicious anemia about necessary dietary changes. Which statement by the client indicates understanding about those changes?
“I'll limit my intake of citrus fruits."
“I'll avoid eating green leafy vegetables."
“I'll work on increasing my fats and carbohydrates.”
“I'll increase animal proteins like fish and meat.”
The Correct Answer is D
Pernicious anemia is a megaloblastic anemia caused by an autoimmune-mediated deficiency of intrinsic factor. This glycoprotein is secreted by gastric parietal cells and is essential for the absorption of cobalamin in the terminal ileum. Without intrinsic factor, dietary vitamin B12 cannot be utilized, leading to impaired DNA synthesis in erythrocytes and progressive, irreversible neurological degeneration.
Rationale:
A. Limiting citrus fruits is an incorrect dietary strategy for any form of anemia. Vitamin C found in citrus actually enhances the absorption of non-heme iron. While pernicious anemia is specifically a B12 issue rather than an iron issue, restricting these fruits provides no therapeutic benefit and could potentially impair general nutritional health.
B. Avoiding green leafy vegetables is inappropriate because these foods are rich in folate. Folate is another essential B vitamin required for red blood cell maturation. While folate cannot correct the vitamin B12 deficiency of pernicious anemia, it is a vital component of a balanced diet for hematologic health and should not be restricted.
C. Increasing fats and carbohydrates does not address the underlying pathophysiology of pernicious anemia. This condition is not a calorie-deficiency disorder but a specific micronutrient absorption failure. Promoting a high-fat or high-carbohydrate diet could lead to metabolic issues without improving the megaloblastic red blood cell production or the patient's neurological symptoms.
D. Increasing animal proteins like fish and meat indicates an understanding that vitamin B12 is exclusively found in animal-derived foods. While patients with true pernicious anemia usually require lifelong parenteral injections because they cannot absorb oral B12, maximizing dietary intake is still taught as a supportive nutritional measure to ensure all available metabolic pathways are utilized.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Ascitesis the accumulation of fluid in the peritoneal cavity, driven by portal hypertension and low serum albumin levels. A major contributor to this process is the activation of the renin-angiotensin-aldosterone system, which causes the kidneys to retain sodium and water. Managing the total body sodium load is the primary non-pharmacological strategy used to reduce fluid accumulation and decrease the need for paracentesis.
Rationale:
A.Sodiumrestriction is the most important dietary intervention for managing ascites. Sodium promotes water retentionthrough osmotic pressure; as the body retains salt, it also retains water, worsening the peritoneal effusion. Typically, a limit of 2,000 milligrams per day or less is recommended to help mobilize fluid out of the abdomen and into the vascular space for excretion.
B.Potassium restriction is generally not required for ascites unless the patient also has significant renal failure. In fact, many patients with cirrhosis and ascites require potassium supplementation because the diuretics used to treat the fluid (like furosemide) cause potassium loss. Potassium is not the primary driver of the osmotic shifts that lead to ascites.
C.Magnesium levels are often low in patients with cirrhosis, especially those with a history of alcohol use. Restricting magnesium would be counterproductive and could lead to neurological or cardiac complications. There is no physiological benefit to restricting magnesium for the purpose of controlling fluid accumulation in the peritoneal cavity.
D.Calcium restriction is not indicated for the management of ascites. Many patients with liver disease are already at risk for bone loss due to malabsorption of fat-soluble vitamins, including Vitamin D. Restricting calcium would provide no benefit for fluid management and could potentially exacerbate underlying skeletal issues common in chronic liver disease.
Correct Answer is C
Explanation
Alcohol-induced cirrhosisis characterized by extensive hepatic fibrosis and regenerative nodules that disrupt liver architecture. The liver is responsible for protein synthesis, detoxification, and glucose storage. While severe hyperammonemiaonce led to universal protein restriction, modern evidence emphasizes maintaining adequate nutrition to prevent muscle wasting and support the metabolic demands of a compromised hepatic system.
Rationale:
A.The statement about avoiding over-the-counter medications does not require further teaching. Many common drugs, such as acetaminophen, are metabolized by the liver and can be highly hepatotoxic in cirrhotic patients. Avoiding these substances protects the remaining functional hepatocytes from chemical injury and prevents acute-on-chronic liver failure.
B.Eating small, frequent, balanced meals is an appropriate nutritional strategy for cirrhosis. Frequent meals help maintain stable blood glucose levels, as the liver's glycogen storage capacity is significantly reduced. This approach also manages the early satiety often caused by ascites and helps ensure the patient receives adequate caloric intake to prevent malnutrition.
C.The statement "I need to avoid protein in my diet" indicates a need for further teaching. Unless a patient is in an acute state of hepatic encephalopathywith severely elevated ammonia, protein is necessary to prevent cachexia and promote healing. Restricting protein can lead to malnutrition and further weaken the patient, so high-quality protein should generally be included.
D.Abstaining from alcohol is the most critical lifestyle modification for halting the progression of cirrhosis. Ethanol is a direct toxin to the liver and its continued use accelerates fibrogenesis and increases the risk of hepatocellular carcinoma. The client’s understanding that they can no longer drink indicates a successful grasp of the primary therapeutic goal.
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