How many stools per day are considered the upper limits of normal?
Three
Five
Two
Seven
The Correct Answer is A
A. Three: Up to three bowel movements per day is generally considered the upper limit of normal for stool frequency in adults. This range accommodates individual variation while distinguishing normal from diarrhea.
B. Five: Five stools per day exceed the typical upper limit and may indicate diarrhea or an underlying gastrointestinal disorder if persistent, rather than normal bowel habits.
C. Two: Two stools per day fall well within the normal range but do not represent the upper limit. Normal stool frequency can range from three times per day to three times per week.
D. Seven: Seven stools per day indicate frequent bowel movements consistent with diarrhea, which is above normal frequency and warrants further assessment for underlying causes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Brain, blood, cerebrospinal fluid (CSF): These are the three main components within the cranial vault as described by the Monro-Kellie doctrine. The total volume of these components remains constant, and any increase in one must be offset by a decrease in another to prevent elevated ICP.
B. Cerebrospinal fluid (CSF), blood, oxygen: While CSF and blood are intracranial components, oxygen is not a physical substance occupying volume in the cranial cavity. It is transported within the blood and does not contribute to changes in ICP in terms of physical space.
C. Brain, cerebrospinal fluid (CSF), air: Air is not a normal component of the cranial cavity. The presence of air would indicate pathology, such as a skull fracture with pneumocephalus, which is abnormal and can contribute to increased ICP but is not a standard component.
D. Brain, blood, lymphatic fluid: While the brain and blood are correct components, the central nervous system, including the brain, does not have a conventional lymphatic system like other parts of the body. Waste products are primarily cleared by the glymphatic system, which utilizes CSF, rather than traditional lymphatic fluid.
Correct Answer is A
Explanation
A. The liver metabolizes most components of food (protein, carbohydrates and fats) and also cleans the blood of bacteria and drugs: The liver plays a central role in metabolism, including converting nutrients into energy or storage forms, breaking down toxins, metabolizing drugs, and filtering bacteria from the blood via Kupffer cells.
B. The liver maintains a balanced level of electrolytes and pH in the body and stores glucose, minerals and vitamins: While the liver stores glycogen and some vitamins and minerals, it does not directly regulate electrolyte or pH balance, which is primarily the function of the kidneys and respiratory system.
C. The liver is responsible for the absorption of most dietary nutrients as well as the production of growth hormones: Nutrient absorption is mainly the role of the small intestine. Growth hormone is produced by the pituitary gland, not the liver, making this statement inaccurate.
D. The liver contributes to the metabolism of ingested food and provides the fluids that the GI tract requires: Although the liver produces bile, which aids in fat digestion, it does not supply most of the fluids needed by the GI tract. Salivary glands, gastric glands, pancreas, and intestines contribute the majority of GI fluids.
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