A nurse is asking a patient about his bowel patterns. Which of the following patient statements may indicate that the patient is experiencing constipation?
"I strain to defecate.”.
"I move my bowels at least 7 times a week.”.
"My stools are soft.”.
"I feel as though I am able to completely evacuate my bowels when I defecate.”.
The Correct Answer is A
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Purkinje fibers are the terminal branches of the cardiac conduction system located within the ventricular walls. They rapidly conduct electrical impulses to the myocardial cells to trigger ventricular contraction. While they possess inherent automaticity and can act as a tertiary pacemaker if other nodes fail, their intrinsic rate is very slow, typically 20 to 40 beats per minute. They are not the primary pacemaker under normal physiological conditions but rather the final stage of impulse distribution.
Choice B rationale
The Bundle of His, or the atrioventricular bundle, receives electrical impulses from the AV node and transmits them toward the apex of the heart via the bundle branches. It serves as a critical bridge for electrical conduction between the atria and the ventricles. Although it has a secondary pacemaker ability with an inherent rate of 40 to 60 beats per minute, it only takes over if the SA node fails to function correctly or if conduction is blocked.
Choice C rationale
The sinoatrial node, located in the right atrium, is known as the natural pacemaker of the heart. It initiates the electrical impulses that set the rhythm and rate of the cardiac cycle. In a healthy adult, the SA node fires at an intrinsic rate of 60 to 100 times per minute. This impulse spreads through the atria, causing them to contract, and then travels to the rest of the conduction system to coordinate a synchronized heartbeat.
Choice D rationale
The atrioventricular node is situated at the junction between the atria and ventricles. Its primary role is to delay the electrical impulse briefly, allowing the atria to finish contracting and the ventricles to fill with blood before they contract. The AV node can act as a secondary pacemaker with a rate of 40 to 60 beats per minute if the SA node is nonfunctional. However, it is not the primary site where the heart's normal rhythm is generated.
Correct Answer is B
Explanation
Choice A rationale
This term describes the presence of excess fat in the feces, which often results in stools that are bulky, foul-smelling, and oily. This condition is typically caused by malabsorption syndromes, such as celiac disease or cystic fibrosis, where the body cannot properly digest or absorb dietary fats. It has no physiological connection to the vomiting of blood and involves the lower digestive outcomes rather than an acute upper gastrointestinal emergency or vascular rupture.
Choice B rationale
This is the correct medical term for the vomiting of blood, which can appear as bright red or like coffee grounds depending on how long it has been in contact with gastric acid. Bright red blood indicates an active, brisk bleed in the upper gastrointestinal tract, such as from esophageal varices or a gastric ulcer. It is a critical clinical finding that requires immediate assessment of hemodynamic stability, as the patient is losing active blood volume.
Choice C rationale
This is a general term for inflammation of the stomach and intestines, commonly caused by viral or bacterial infections. While it can cause significant vomiting and diarrhea, the emesis is usually composed of food or bile rather than bright red blood. While severe irritation can occasionally lead to streaks of blood, the term itself refers to the inflammatory state of the gut lining and does not specifically define the clinical act of vomiting blood.
Choice D rationale
This term refers to the passage of black, tarry stools that result from the digestion of blood in the gastrointestinal tract. While it indicates a bleed, it describes the appearance of blood that has passed through the intestines and been oxidized by acid and bacteria. It is the result of upper gastrointestinal bleeding but is a finding associated with defecation, not the act of vomiting, making it the incorrect term for this specific patient complaint.
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