A nurse is teaching a client who is about to start taking dioctyl sodium sulfosuccinate (Colace). The nurse should make sure that the client understands that this medication should result in which of the following?

Choice A rationale

The first and most appropriate nursing action when suspecting urinary retention (no voiding for 8 hours after catheter removal) is to objectively assess the residual volume of urine in the bladder. A non-invasive bladder scan is the most effective and safest initial approach to confirm retention, quantify the volume, and avoid unnecessary catheterization or fluid administration, which could worsen discomfort and overdistend the bladder.

Choice B rationale

Inserting an indwelling catheter to remain in place for 24 hours is an invasive procedure that carries risks such as infection and should not be the first step. Catheterization is indicated only after confirming significant residual volume via a bladder scan and when less invasive methods fail, and a straight catheter is generally preferred for a one-time relief of retention.

Choice C rationale

Using a straight catheter (intermittent catheterization) is the correct intervention to alleviate confirmed urinary retention. However, it is an invasive procedure, and the nurse must first confirm the presence of significant retention using a non-invasive bladder scan before proceeding to catheterization for therapeutic relief. The bladder scan guides the need for this intervention.

Choice D rationale

Increasing both oral and intravenous fluid intake would increase urine production. If the client is truly retaining urine and cannot empty their bladder, increasing fluids will only lead to further bladder distension, increased discomfort, and potentially lead to injury to the bladder wall or the ureters and kidneys (hydronephrosis), making this action inappropriate as a first step.

Choice A rationale

Pyelonephritis is a serious upper urinary tract infection, often caused by the ascent of bacteria from a lower UTI into the renal pelvis and kidney parenchyma. Recurrent lower UTIs, especially those treated inadequately or occurring frequently (like two in three months), significantly increase the risk for pyelonephritis due to the repeated opportunity for ascending infection. Escherichia coli is the most common causative organism, originating from the perianal area. This history indicates a potential pathway for the development of the current condition.

Choice B rationale

Pyelonephritis is overwhelmingly caused by a bacterial infection, not a primary genetic disease that is directly inherited in this manner. While some congenital anomalies of the urinary tract (like vesicoureteral reflux) can predispose to UTIs and pyelonephritis, the condition itself is not typically classified as a simple genetic disease passed down through generations. Therefore, a report of a mother mentioning a grandmother having the same "genetic disease" is unlikely to be a direct cause or a common predisposing factor.

Choice C rationale

Long-term, excessive use of non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen can cause analgesic nephropathy, which involves chronic interstitial nephritis and papillary necrosis. This type of chronic kidney damage can impair kidney function and potentially make the kidneys more vulnerable to injury, but it is not a direct expected cause or precursor reported for acute pyelonephritis, which is primarily an infectious process.

Choice D rationale

Hypercalcemia (high calcium in the blood, normal range 8.5–10.2 mg/dL) and a high dietary calcium intake are primary risk factors for the formation of calcium oxalate or calcium phosphate kidney stones (nephrolithiasis). Kidney stones can obstruct urine flow, and urinary obstruction is a significant risk factor for pyelonephritis because it allows bacteria to multiply and colonize the stagnant urine. However, the client specifically reporting the calcium status and diet is not the most direct or expected antecedent medical history compared to a history of recurrent UTIs.