The healthcare provider ordered a 24-hour urine specimen to test the renal function of a client admitted with acute renal failure. The nurse has prepared all the necessary equipment and has asked the client if they need to void.
When will the 24-hour collection period begin?
After the second voided specimen is collected.
After the first morning voided specimen is discarded.
As soon as the necessary equipment arrives.
With the last voided specimen of the day.
The Correct Answer is B
Choice A rationale
Waiting until after the second voided specimen is collected to start the 24-hour clock would result in an inaccurate total volume and incorrect concentration of solutes. The goal of the 24-hour urine collection is to measure the total excretion of substances like creatinine, protein, or electrolytes over a precise 1440-minute window. Starting at the second void would omit the urine produced between the first and second voids, leading to a significant underestimation of renal clearance.
Choice B rationale
The 24-hour urine collection begins by having the client empty their bladder and discarding that first specimen. This ensures that the urine collected starts from an empty bladder at a specific time. All subsequent urine for the next 24 hours, including the final void at the exact end of the 24-hour period, is saved in the container. This method captures all urine produced by the kidneys during the designated timeframe, providing a reliable measure of renal function.
Choice C rationale
The arrival of equipment does not dictate the start of the biological collection period. The timing must be synchronized with the emptying of the client's bladder to ensure the sample represents a true 24-hour window of renal filtration and excretion. Starting the collection based on equipment arrival rather than the client's voiding schedule would lead to a random timeframe that does not account for urine already present in the bladder from the hours prior to the start.
Choice D rationale
Starting with the last voided specimen of the day is incorrect because it does not allow for a full 24-hour cycle of monitoring. A 24-hour collection must span a complete day-night cycle to account for circadian variations in hormone levels and renal excretion rates. Beginning at the end of the day would be retrospective and logistically impossible for a forward-looking collection. The process must be prospective, starting with an empty bladder and ending exactly 24 hours later.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Laissez-faire leadership is characterized by a passive approach where the leader provides little to no direction and allows the group to make all decisions. In this scenario, the manager is doing the exact opposite by creating the plan herself and assigning specific tasks without staff input. Laissez-faire leaders rarely hold structured meetings to issue mandates; instead, they remain hands-off, which often leads to a lack of coordination unless the team is highly autonomous.
Choice B rationale
Autocratic leadership involves centralized decision-making where the leader maintains full control and expects strict obedience. By developing the plan in isolation and dictating the specific tasks and reporting structures, the manager is demonstrating classic autocratic traits. This style is efficient in crises but can stifle staff morale and creativity. The requirement for staff to report directly to her further emphasizes the top-down communication and control inherent in this management approach for the unit.
Choice C rationale
Transactional leadership focuses on the exchange between leaders and followers, emphasizing rewards for compliance and punishments for failure to meet goals. While this manager is giving instructions, the description lacks the specific element of a "transaction" or incentive-based system. Transactional leaders manage by exception, intervening only when standards are not met. The manager's behavior here is more about the initial exercise of absolute authority and task assignment rather than an established system of bureaucratic rewards.
Choice D rationale
Democratic leadership, also known as participative leadership, encourages group discussion and collaborative decision-making. A democratic manager would have invited the staff to help develop the plan or volunteer for tasks based on their own interests and expertise. Since this manager presented a pre-made plan and restricted the flow of communication to a direct reporting line to her, she is not utilizing a democratic approach. Democratic leaders prioritize consensus and shared responsibility over individual control.
Correct Answer is B
Explanation
Choice A rationale
Recommending the avoidance of bananas and apples is counterproductive for a client suffering from diarrhea. These specific fruits are actually part of the BRAT diet, which stands for bananas, rice, applesauce, and toast. These foods are low in fiber and help bind the stool, making them beneficial during recovery. Restricting them removes a potential source of potassium and pectin, which help stabilize the gut. Fiber management is essential for maintaining normal electrolyte and fluid balance.
Choice B rationale
Encouraging a clear liquid diet is the primary intervention to prevent dehydration, which is the most severe complication of diarrhea. Clear liquids such as broth, gelatin, and electrolyte replacement drinks provide essential hydration without overtaxing the gastrointestinal tract. This approach allows the bowel to rest while ensuring the client receives necessary fluids. Maintaining hydration is critical because excessive water loss leads to hypotension and electrolyte imbalances, where normal sodium levels are 135 to 145 mEq/L.
Choice C rationale
Offering solid foods like vegetables and beans is inappropriate during an acute episode of diarrhea. These foods are typically high in insoluble fiber and complex carbohydrates, which can increase gas production and stimulate further peristalsis. This mechanical stimulation can worsen the frequency of stools and increase abdominal cramping. The gut requires a period of rest and easily digestible nutrients rather than bulky roughage. Reintroducing these foods should only happen once the stool consistency begins to normalize.
Choice D rationale
Helping the client lie flat in a supine position does not directly treat or prevent complications related to diarrhea. In fact, if the client is experiencing nausea or vomiting alongside diarrhea, lying flat could increase the risk of aspiration. While rest is important, position changes do not address the physiological need for fluid replacement or bowel rest. Nursing care should focus on metabolic stability and skin integrity rather than a specific supine position, which provides no therapeutic benefit.
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