The nurse knows that a client with prolonged prothrombin time (PT) values (not related to medication) probably has dysfunction in which organ?

Polycystic kidney disease(PKD) is a genetic disorder characterized by the growth of numerous fluid-filled cysts in the kidneys. These cysts progressively enlarge, compressing and replacing healthy renal parenchyma. This mechanical expansion leads to significant organ enlargement, hypertension, and the eventual loss of renal function. The clinical presentation is defined by the physical presence of the cysts and their impact on glomerular filtrationand tubular concentration.

Rationale:

A.Dysuria, or painful urination, is typically a sign of a lower urinary tract infection (UTI). While PKD patients are more prone to UTIs, dysuria is not a primary finding of the disease itself. The symptoms of PKD are related to the structural changes in the kidney and upper urinary tract rather than the inflammatory process in the bladder or urethraseen in simple cystitis.

B.Diarrhea is not a clinical manifestation of polycystic kidney disease. Renal disorders generally affect fluid balance and waste excretion rather than intestinal motility. While end-stage renal disease can cause gastrointestinal upset due to uremia, diarrhea is not a specific or expected assessment finding for a patient diagnosed with polycystic structural changesin the kidneys.

C.Nocturiais an early sign of PKD because the growing cysts interfere with the kidneys' ability to concentrate urine. As the tubular functiondeclines, the kidneys produce large amounts of dilute urine even at night. This forces the patient to wake up multiple times to void, reflecting the loss of the normal diurnal rhythm of urine concentration and fluid management.

D.Flank painis a very common finding in PKD, often described as a dull, aching sensation. This is caused by the extreme enlargement of the kidneys, which can grow to several times their normal size, stretching the renal capsule. Acute, sharp pain may also occur if a cyst ruptures or if a renal stonedevelops, both of which are common complications of the disease.

E.Hematuria, or blood in the urine, occurs when a cyst ruptures into the renal pelvis or when a cyst wall bleeds. Because the cysts are highly vascular and under pressure, they can easily burst, leading to gross or microscopic blood in the urine. This is a classic assessment finding that alerts the nurse to the progression or mechanical complicationsof the cystic growth.

F.Increased abdominal girthis expected in PKD because the kidneys can become massive as the cysts multiply and expand. In advanced cases, the kidneys can be easily palpated as large, irregular masses in the abdomen. This expansion displaces other organs and increases the physical measurement of the waistline, reflecting the significant organomegalyassociated with the disease.

Furosemideis a potent loop diureticthat inhibits the sodium-potassium-chloride symporter in the thick ascending limb of the loop of Henle. By preventing the reabsorption of these electrolytes, it promotes osmotic diuresis, effectively reducing intravascular volume and systemic edema. In chronic kidney disease, monitoring the balance between fluid intake and excretion is vital to prevent circulatory overloadand worsening renal tension.

Rationale:

A.Palpating the abdomen is not an effective method for assessing the therapeutic response to a diuretic. While the nurse might check for ascites in advanced liver or renal failure, abdominal palpation does not provide quantifiable data regarding fluid loss. Daily weights and intake/output measurements provide the objective evidence needed to evaluate the success of pharmacological volume reduction.

B.Assessing diet history is important for managing sodium and fluid intake in renal patients, but it does not measure the actual effectiveness of furosemide. While a high-sodium diet can counteract the drug's effects, the diet history is a record of input rather than a measure of the drug's output and therapeutic impact on the patient's current fluid status.

C.Auscultating heart and breath sounds is a necessary assessment to detect complications of fluid volume excess, such as pulmonary edema or S3 gallops. However, while these findings provide a "snapshot" of current status, they are less sensitive for daily titration compared to weight. Improvements in lung sounds are secondary to the primary goal of actual fluid mass reduction.

D.Obtaining daily weightsis the most accurate and "best" action to assess the therapeutic effect of furosemide. Since 1 liter of fluid equals 1 kilogram of body mass, weight changes are the most sensitive indicator of fluid volumefluctuations. This provides the nurse and provider with objective, daily data to ensure the medication is successfully mobilizing excess extracellular fluid.