Which clinical finding most strongly suggests development of pulmonary edema in a client with left-sided heart failure?
Bounding peripheral pulses.
Increased urinary output at night.
Productive cough with frothy sputum.
Constipation and dry mucous membranes.
The Correct Answer is C
Choice A rationale
Bounding peripheral pulses are usually associated with conditions that increase stroke volume or decrease systemic vascular resistance, such as fever, anemia, or hyperthyroidism. In heart failure, pulses are more likely to be weak, thready, or alternating due to decreased cardiac output and compensatory vasoconstriction. Bounding pulses do not indicate pulmonary edema; in fact, as heart failure worsens and edema develops, peripheral perfusion often declines, leading to diminished rather than strengthened peripheral arterial pulsations.
Choice B rationale
Increased urinary output at night, known as nocturia, is a common early symptom of heart failure. When a patient lies flat, the dependent edema from the legs is redistributed into the circulatory system, increasing renal blood flow and triggering the kidneys to produce more urine. While this indicates fluid volume overload related to heart failure, it is a compensatory mechanism and does not represent the acute respiratory crisis of pulmonary edema, which involves fluid entering the air sacs.
Choice C rationale
A productive cough with frothy, pink-colored sputum is a hallmark sign of acute pulmonary edema. This occurs because the high pressure in the pulmonary capillaries forces fluid and some red blood cells into the alveoli. The mixing of this fluid with air during breathing creates the characteristic frothy appearance. This clinical finding signifies that the left-sided heart failure has progressed to a point where the lungs are severely congested, severely impairing gas exchange and requiring immediate intervention.
Choice D rationale
Constipation and dry mucous membranes are typically signs of dehydration or certain medication side effects rather than pulmonary edema. In pulmonary edema, the body is experiencing fluid overload, not a deficit. The mucous membranes might appear cyanotic due to poor oxygenation, but they would not be characterized as dry in the context of an acute fluid backup. Constipation is unrelated to the acute hemodynamic and respiratory changes that occur when fluid fills the pulmonary interstitial and alveolar spaces.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
This term refers specifically to the inflammation of the gallbladder wall, which is often a secondary complication of a blockage. While it is frequently caused by stones, the term itself describes the inflammatory process, which involves chemical or bacterial irritation, rather than the physical stones themselves. Patients with this condition usually present with right upper quadrant pain, fever, and leukocytosis, which are signs of an active infection or severe irritation within the biliary system.
Choice B rationale
This condition involves the presence of small, bulging pouches or sacs in the lining of the digestive tract, most commonly found in the sigmoid colon. It is related to high pressure within the colon and is entirely unrelated to the biliary system or the formation of stones in the gallbladder. This condition is often asymptomatic unless the pouches become inflamed, at which point it transitions into a different clinical diagnosis involving the lower gastrointestinal tract.
Choice C rationale
This is the specific medical term for the formation or presence of calculi within the gallbladder. These stones are typically composed of cholesterol or bilirubin that has precipitated out of the bile solution. The process occurs when bile becomes supersaturated or when the gallbladder does not empty properly. It is the correct term for the physical masses themselves, which can range in size from small grains of sand to large objects the size of a golf ball.
Choice D rationale
This term describes the infection or inflammation of the small pouches that can form in the intestines. While it shares the suffix for inflammation with Choice A, it is localized to the bowel and does not involve the gallbladder or the formation of gallstones. Symptoms usually include left lower quadrant pain and changes in bowel habits. It represents a pathological state of the intestinal wall rather than the presence of solid calculi in the biliary tree.
Correct Answer is A
Explanation
Choice A rationale
Straining during defecation, known as dyschezia, is a primary indicator of constipation. It suggests that the stool is hard, dry, or difficult to pass through the anal canal. This often results from excessive water absorption in the colon due to slow transit time. According to the Rome IV criteria, straining in more than 25 percent of bowel movements is a diagnostic feature of functional constipation, even if the frequency of movements seems somewhat regular.
Choice B rationale
Moving the bowels at least 7 times a week falls within the normal range for bowel frequency. The standard medical definition of normal bowel habits ranges from three times per day to three times per week. A frequency of once daily indicates regular transit and efficient waste elimination. Constipation is generally defined as having fewer than three bowel movements per week. Therefore, this statement suggests healthy colonic function rather than a state of constipation or delayed fecal transit.
Choice C rationale
Soft stools are generally considered a sign of healthy bowel function and adequate hydration. According to the Bristol Stool Form Scale, soft, sausage-shaped stools (Type 4) are the ideal consistency for easy passage. Constipation is characterized by stools that are hard, lumpy, or pebble-like (Types 1 and 2), which occur when fecal matter remains in the large intestine too long. Soft stools indicate that the transit time is appropriate and fiber intake is likely sufficient.
Choice D rationale
The feeling of complete evacuation indicates that the rectal ampulla has been successfully emptied and the defecation reflex is functioning correctly. In contrast, patients with constipation or pelvic floor dyssynergia often report a sensation of incomplete evacuation or anorectal obstruction. Successful and complete emptying is a sign of normal neuromuscular coordination between the colon, rectum, and anal sphincters. This statement confirms the absence of the obstructive symptoms typically associated with chronic constipation.
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