In assessing a client with skin ulcers on the lower extremity, which findings indicate that the ulcers are likely to be of venous, rather than arterial, origin?
Absent pedal pulses and shiny skin.
Irregular ulcer shapes and severe edema.
Hairless lower extremities and cool feet.
Black ulcers and dependent rubor.
The Correct Answer is B
B. Severe edema is a common finding in venous insufficiency and is often present in the lower extremities. Venous hypertension leads to fluid leakage from capillaries, resulting in edema, which contributes to the development of venous ulcers. Venous ulcers typically have irregular shapes with irregular wound margins and may appear shallow or superficial.
A. Absent pedal pulses suggest arterial insufficiency, as reduced blood flow compromises peripheral circulation. Shiny skin, known as "thinning of the skin," is a characteristic finding in arterial insufficiency due to chronic ischemia and tissue hypoxia.
C. Hair loss on the lower extremities is a common finding in arterial insufficiency due to decreased blood flow to the hair follicles.
D. Black ulcers (gangrene) are indicative of tissue necrosis resulting from severe arterial insufficiency and lack of oxygen supply to the tissues. Dependent rubor refers to redness of the lower extremities when the legs are in a dependent position.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
B. Redness, tenderness, and drainage around the catheter site are classic signs of an exit site infection in peritoneal dialysis. Exit site infections are a common complication of peritoneal dialysis and can lead to more serious complications, such as peritonitis, if not promptly treated. Preventing exit site infections through proper catheter care and hygiene is essential in peritoneal dialysis management.
A. While outflow obstruction can occur in peritoneal dialysis, it typically presents with symptoms such as poor drainage of dialysate fluid, abdominal discomfort, and a decrease in dialysis efficiency. The described findings of redness, tenderness, and drainage around the catheter site are more indicative of a localized issue rather than outflow obstruction.
C. Atelectasis refers to the collapse of a part or the entire lung. While it can occur in hospitalized patients, especially those with underlying respiratory conditions, the described findings are not indicative of atelectasis. Atelectasis typically presents with symptoms such as dyspnea, cough, and decreased breath sounds on auscultation.
D. Peritonitis is a severe complication of peritoneal dialysis characterized by inflammation and infection of the peritoneal lining. While redness, tenderness, and drainage around the catheter site may precede peritonitis, the focus of concern in this scenario is primarily on preventing exit site infection, which, if left untreated, can progress to peritonitis.
Correct Answer is B
Explanation
B. Lactulose works by acidifying the colonic contents, which promotes the conversion of ammonia (NH3) to ammonium (NH4+). Ammonium is less readily absorbed from the colon into the bloodstream, reducing systemic ammonia levels. This action helps alleviate the neurotoxic effects of ammonia on the brain, thereby improving neurological symptoms associated with hepatic encephalopathy.
A. Lactulose is required in clients with hepatic encephalopathy to excrete ammonia lowering its levels in blood. Holding the lactulose dose is inappropriate as the client’s ammonia levels are still high
C. Rehydrating the clients to replace lost fluids in the loose stools is important but does not address
the client’s elevated ammonia levels which may be exacerbating the client’s encephalopathy.
D. Reporting the number of diarrhea stools to the healthcare provider is important for ongoing assessment and management of the client's condition. However, it does not address the clients high ammonia levels.
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