The nurse assesses the client's intravenous insertion site.
Which findings indicate the nurse needs to stop the therapy and change the client's intravenous access site? Select all that apply.

Choice A rationale

This statement is partially true but lacks the comprehensive nature of the physiological explanation. While antibiotics are chosen based on sensitivity, the primary purpose of the culture is to confirm the presence of pathogens and identify them. Identifying the specific infectious agent is the first step in the process. However, this answer focuses more on the provider's prescription habits rather than the fundamental scientific purpose of the diagnostic test itself, which is to identify the underlying causative bacteria.

Choice B rationale

This statement is medically inaccurate and dangerous. Skipping culture tests to rely solely on broad-spectrum antibiotics contributes to the global problem of antibiotic resistance and may fail to treat the specific organism causing the infection. Broad-spectrum therapy is often started empirically, but it is not as safe or effective as targeted therapy. Cultures are essential for "de-escalation," which means switching to a narrow-spectrum antibiotic that is more effective against the specific bacteria identified in the wound.

Choice C rationale

This statement is the most accurate because it correctly identifies the scientific goal of performing both wound and blood cultures. Wound cultures identify local pathogens, while blood cultures determine if those pathogens have entered the systemic circulation, a condition known as bacteremia. Identifying the specific bacteria allows for targeted antibiotic therapy, which is the gold standard for treating infections. This process ensures that the treatment is effective against the actual organisms present, thereby improving the chances of successful wound healing.

Choice D rationale

This statement is incorrect because waiting a week to perform cultures in a patient with purulent drainage and a foul odor could lead to severe complications, including sepsis or osteomyelitis. In a patient with type 2 diabetes, wound infections can progress rapidly due to impaired immune function and poor circulation. Diagnostic cultures should be obtained immediately when signs of infection are present to ensure that appropriate systemic or topical treatment is started without delay, preventing the spread of the infection.

Choice A rationale

Relying solely on the urge to urinate is often unreliable for clients requiring intermittent self-catheterization. Many of these clients have neurogenic bladders or decreased sensation, meaning they may not feel the urge until the bladder is dangerously overdistended. Overdistension can lead to urinary tract infections, vesicoureteral reflux, and permanent bladder wall damage. Therefore, a structured schedule is far safer and more effective for maintaining bladder health and preventing complications than waiting for sensation.

Choice B rationale

The frequency of intermittent self-catheterization is a highly individualized prescription based on the client's bladder capacity, fluid intake, and residual volumes. The healthcare provider determines a schedule, often every 4 to 6 hours, to ensure the bladder volume stays below a specific limit, usually 400 to 500 mL. Following a professional schedule ensures consistent drainage, prevents stasis-related infections, and protects the upper urinary tract from pressure-induced injury, making it the most appropriate instruction.

Choice C rationale

Suggesting a rigid limit of only three times a day is potentially dangerous without knowing the client's specific clinical needs. For many patients, catheterizing only three times in 24 hours would result in excessive bladder volumes, increasing the risk of leaking, infection, and kidney damage. Since urine production varies based on many factors, a fixed low frequency is rarely appropriate as a general rule. The frequency must be tailored to keep bladder volumes within safe parameters.

Choice D rationale

Every two hours is generally too frequent for the average client performing self-catheterization and can lead to unnecessary trauma to the urethral mucosa and an increased risk of introducing pathogens. Such a frequent schedule is also highly burdensome and can significantly decrease a client's quality of life and compliance. While very frequent intervals might be used in specific acute settings, it is not a standard recommendation for long-term self-management unless specifically ordered by a physician.