The nurse is caring for a client admitted with a long-term diagnosis of ulcerative colitis (UC). For what potentially life-threatening complication would the nurse monitor?

Maintaining fluid homeostasisis a critical challenge in chronic kidney disease due to the progressive loss of nephron function and reduced glomerular filtration rate. When the kidneys can no longer excrete excess water, fluid shifts into the interstitial spaces and pulmonary vasculature. A stable fluid balance indicates that the patient's restricted intake is matched by their limited output, preventing life-threatening pulmonary congestion.

Rationale:

A.The absence of adventitious soundsin the lungs, such as crackles or rales, is a primary indicator that the client’s fluid balance is stable. This suggests that fluid is not accumulating in the pulmonary interstitial spaces or alveoli. It confirms that the current fluid restriction is effective in preventing extracellular fluid volume excessand potential respiratory failure.

B.Decreased calcium levels (hypocalcemia) are a common finding in CKD due to impaired vitamin D activation and hyperphosphatemia, but they do not indicate fluid stability. Electrolyte imbalances in renal disease are chemical markers of metabolic bone disease rather than direct indicators of volume status. A patient can have stable fluid levels while still possessing severe mineral imbalances.

C.Increased edema in the legs is a clear sign of fluid volume excess and instability. This indicates that the current fluid restriction is insufficient or that the patient is not adhering to the regimen. Edema reflects the migration of fluid into the interstitial spacedue to increased hydrostatic pressure, signifying that the patient's fluid balance is worsening.

D.Increased phosphorus levels (hyperphosphatemia) occur in CKD because the kidneys cannot excrete phosphate effectively. Like calcium, phosphorus is a marker of mineral and bone disorder and renal clearance efficiency. While it is an important laboratory finding to monitor in CKD, it provides no information regarding the stability of the patient's actual fluid volume status.

Pernicious anemiais 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 cobalaminin 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 B12is exclusively found in animal-derived foods. While patients with true pernicious anemia usually require lifelong parenteral injectionsbecause they cannot absorb oral B12, maximizing dietary intake is still taught as a supportive nutritional measure to ensure all available metabolic pathways are utilized.