A man with urinary incontinence tells the registered nurse he wears adult incontinence briefs for protection. What potential risks should the registered nurse discuss with this client?

Rationale for Choice A:
Sims' position is a side-lying position with the lower arm and leg flexed and the upper arm and leg extended. It is not ideal for bladder scanning because it can displace the bladder and potentially lead to inaccurate readings. While it can be used for other purposes, such as inserting rectal suppositories or performing vaginal exams, it's not the optimal choice for bladder scanning.
Rationale for Choice B:
Dorsal recumbent position is a supine position with the knees bent and feet flat on the bed. While it provides some exposure of the bladder, it may not fully visualize the entire bladder due to potential compression from the abdominal contents. This can also result in inaccurate readings.
Rationale for Choice D:
High Fowler's position is a semi-sitting position with the head of the bed elevated at a 45- to 60-degree angle. This position is not suitable for bladder scanning because it can cause the bladder to shift upward and out of the optimal scanning range. It's typically used for respiratory comfort and procedures involving the head and upper body.
Rationale for Choice C:
Supine position is the best position for bladder scanning because it allows for the most accurate visualization of the bladder. In this position, the patient lies flat on their back with their legs extended. This position allows the bladder to rest naturally in the pelvic cavity, ensuring optimal positioning for the bladder scanner to capture a clear image and provide an accurate measurement of bladder volume. It also promotes patient comfort and relaxation during the procedure.

Choice A rationale:
Reduced kidney ability to concentrate urine is a common physiological change associated with normal aging. This is due to several factors, including:

Decreased glomerular filtration rate (GFR): The kidneys filter waste products from the blood. As we age, the number of functioning nephrons (filtering units) in the kidneys decreases, leading to a decline in GFR. This means that the kidneys are less able to filter waste products and concentrate urine.
Decreased renal blood flow: Blood flow to the kidneys also decreases with age. This further reduces the kidneys' ability to filter waste products and concentrate urine.
Decreased tubular function: The tubules in the kidneys are responsible for reabsorbing water and electrolytes from the urine. As we age, the function of the tubules also declines, leading to a decrease in the ability to concentrate urine.
As a result of these changes, older adults often produce more urine, even at night. This can lead to nocturia, which is the need to wake up to urinate two or more times per night.
Choice B rationale:
Lower fluid intake during daytime hours can also contribute to nocturia, but it is not a direct physiological change associated with normal aging. Older adults may drink less fluids during the day for a variety of reasons, such as decreased thirst sensation, fear of incontinence, or limited access to fluids. However, even if they maintain adequate fluid intake during the day, they may still experience nocturia due to the reduced ability of their kidneys to concentrate urine.
Choice C rationale:
Enhanced bladder contractility leading to urinary stasis is not a typical physiological change associated with normal aging. In fact, bladder contractility often decreases with age, which can lead to difficulty emptying the bladder completely. This can contribute to urinary frequency and urgency, but it is not typically a cause of nocturia.
Choice D rationale:
Increased bladder muscle tone leading to frequent urination is also not a typical physiological change associated with normal aging. Bladder muscle tone may decrease with age, which can lead to difficulty emptying the bladder completely. However, it is not typically a cause of nocturia.