A nurse is assessing a patient who has a puncture wound on his foot.
Which of the following findings is a manifestation of acute osteomyelitis?

Choice A rationale

Obtaining a dietary history is important in managing ulcerative colitis, as certain foods can exacerbate symptoms. However, in an acute exacerbation, the immediate priority is to address physiological instability, which electrolyte imbalances can significantly contribute to.

Choice B rationale

During an acute exacerbation of ulcerative colitis, patients can experience significant fluid and electrolyte losses due to frequent and bloody diarrhea. Reviewing electrolyte values, such as potassium, sodium, and magnesium, is the priority to identify and promptly correct any imbalances that could lead to cardiac arrhythmias or other complications. Normal ranges for serum electrolytes are: Sodium: 135-145 mEq/L, Potassium: 3.5-5.0 mEq/L, Chloride: 98-106 mEq/L, Bicarbonate: 22-26 mEq/L, Calcium: 8.5-10.5 mg/dL, Magnesium: 1.5-2.5 mEq/L.

Choice C rationale

Checking perianal skin integrity is important because frequent diarrhea can lead to skin breakdown. However, this assessment is secondary to addressing potential life-threatening electrolyte imbalances that can occur during an acute flare-up.

Choice D rationale

Addressing the patient's emotional concerns is a crucial aspect of holistic care for patients with chronic conditions like ulcerative colitis. However, in the context of an acute exacerbation, the immediate physiological needs, such as identifying and correcting electrolyte imbalances, take precedence.

Choice A rationale

Acetaminophen is often recommended as a first-line analgesic for managing mild to moderate pain associated with osteoarthritis. It acts centrally to inhibit prostaglandin synthesis in the central nervous system and block pain impulses peripherally. Unlike nonsteroidal anti-inflammatory drugs (NSAIDs), acetaminophen lacks significant anti-inflammatory properties and does not typically cause gastrointestinal irritation or bleeding, making it a safer initial option for chronic pain management in many individuals.

Choice B rationale

Decreasing foods high in purines is a dietary recommendation for patients with gout, a type of inflammatory arthritis caused by the accumulation of uric acid crystals in the joints. Osteoarthritis, however, is a degenerative joint disease resulting from cartilage breakdown and is not directly linked to purine metabolism or uric acid levels. Therefore, this dietary modification is not relevant to managing osteoarthritis.

Choice C rationale

While elevating an affected joint can help reduce swelling and discomfort, it is generally recommended for acute inflammation or injury rather than the chronic pain of osteoarthritis. Large pillows under the knee or hip for extended periods can actually promote joint flexion contractures and should be avoided. Proper positioning usually involves maintaining joint alignment and avoiding prolonged static positions.

Choice D rationale

Applying heat can provide pain relief and muscle relaxation for osteoarthritis by increasing blood flow to the area and reducing stiffness. However, the temperature should be comfortably warm, not below body temperature, to achieve these therapeutic effects. Heat application typically ranges from 104°F to 113°F (40°C to 45°C) for optimal benefit without causing burns.