A nurse is admitting a client who has pneumonia. The nurse should initiate which of the following isolation precautions for the client?

A. Autonomy is the ethical principle that respects the right of clients to make their own decisions and choices regarding their health care. Informed consent is a process that ensures that clients are fully informed of the benefits, risks, alternatives, and consequences of a proposed treatment or procedure, and that they voluntarily agree to it.

B. Nonmaleficence is the ethical principle that obliges health care providers to do no harm to clients, either intentionally or unintentionally. Informed consent does not directly promote this principle, although it may help to prevent harm by disclosing potential risks and complications.

C. Justice is the ethical principle that requires fair and equal treatment of all clients, regardless of their personal characteristics, preferences, or values. Informed consent does not directly promote this principle, although it may help to ensure that clients are not coerced or manipulated into accepting a treatment or procedure that they do not want or need.

D. Fidelity is the ethical principle that requires health care providers to be faithful and loyal to their clients, and to honor their commitments and promises. Informed consent does not directly promote this principle, although it may help to establish trust and rapport between clients and providers.

• Urinary output is an important indicator of fluid balance and kidney function. After delivery, a woman may experience increased urinary output due to the loss of excess fluid that was retained during pregnancy and the diuretic effect of oxytocin, which is released during breastfeeding. This is a normal and expected finding in the postpartum period.
• However, increased urinary output may also be a sign of urinary retention, which is the inability to empty the bladder completely. Urinary retention can occur due to trauma to the bladder or urethra during delivery, swelling or hematoma of the perineum, epidural anesthesia, or decreased bladder sensation.Urinary retention can lead to complications such as infection, bladder distension, or postpartum hemorrhage.
• Therefore, when a woman who delivered a normal newborn 24 hours ago reports that she seems to be urinating every hour or so, the practical nurse (PN) should measure the next voiding, then palpate the client's bladder. This will help to assess the amount and quality of urine and the presence or absence of bladder distension. A normal urine output is about 30 ml per hour, and a normal bladder should feel soft and empty after voiding. If the urine output is low or high, or if the bladder feels firm or full after voiding, the PN should report these findings to the primary healthcare provider for further evaluation and intervention.

Therefore, option B is the correct answer, while options A, C, and D are incorrect.

Option A is incorrect because catheterizing the client for residual urine volume is an invasive procedure that should only be done if indicated by the primary healthcare provider.

Option C is incorrect because evaluating for normal involution and massaging the fundus are related to uterine function, not urinary function.

Option D is incorrect because obtaining a specimen for urine culture and sensitivity is not necessary unless there are signs of infection, such as fever, dysuria, or foul-smelling urine.