Which of the following is considered a type of good cholesterol?

Rationale:

A. The client has renal failure is incorrect. In renal failure, the kidneys often lose the ability to concentrate urine, which usually results in low or fixed specific gravity, not high. A high specific gravity is not a direct indicator of renal failure.

B. The urine is dilute due to hydration is incorrect. Dilute urine corresponds to low specific gravity, which occurs when a client is well-hydrated or when the kidneys are excreting large volumes of water. High specific gravity indicates the opposite.

C. The client has well-controlled diabetes is incorrect. While diabetes mellitus can cause glucosuria in uncontrolled cases, which may slightly increase urine specific gravity, well-controlled diabetes does not typically produce a high specific gravity.

D. The urine is highly concentrated is correct. A high urine specific gravity reflects a high solute concentration relative to water, indicating concentrated urine. This can result from dehydration, reduced fluid intake, excessive loss of water (e.g., vomiting, diarrhea, sweating), or conditions that promote water reabsorption such as elevated antidiuretic hormone (ADH) activity. Measuring specific gravity is a useful indicator of the kidney’s concentrating ability and the client’s hydration status.

Rationale:

A. Inhalation injury is a serious complication of severe burns, especially those involving the face, neck, or upper torso, or occurring in a fire with smoke or toxic fumes. Thermal or chemical injury to the respiratory tract can cause airway edema, bronchospasm, and impaired gas exchange, which can be life-threatening if not promptly managed.

B. Contractures can develop during the healing process of deep partial-thickness or full-thickness burns. Scar tissue and skin grafts can limit joint mobility, leading to permanent deformities if proper positioning, physical therapy, and splinting are not implemented.

C. Hypovolemic shock is a common early complication of severe burns. Extensive burn injuries cause massive fluid loss through damaged skin and increased capillary permeability, leading to decreased circulating blood volume, hypotension, and organ hypoperfusion. Immediate fluid resuscitation is critical to prevent shock and organ failure.

D. Hearing loss is not a recognized complication of burn injuries. Burns typically do not affect the auditory system unless there is a direct traumatic injury to the ears, which is rare.

E. Increased muscle mass is incorrect. Severe burns are associated with catabolism, muscle wasting, and negative nitrogen balance due to hypermetabolic stress, not increased muscle mass.

F. Infection is a major risk in burn patients because the skin barrier is destroyed, providing a portal for bacteria, fungi, and viruses. Burn wounds are highly susceptible to local infections and sepsis, which is a leading cause of morbidity and mortality in severe burn injuries.