The parents of a child with acid-base imbalance ask the nurse about mechanisms that regulate acid-base balance. Which statement by the nurse accurately explains the mechanisms regulating acid-base balance in children?
The cardiovascular and integumentary systems
The respiratory, renal, and chemical-buffering systems
The kidneys balance acid: the lungs balance base.
The skin, kidney, and endocrine systems
The Correct Answer is B
The regulation of acid-base balance in the body involves multiple systems working together. The respiratory system, renal system, and chemical-buffering systems play key roles in maintaining the balance of acids and bases in the body.
The respiratory system helps regulate acid-base balance through the control of carbon dioxide (CO2) levels in the blood. By adjusting the rate and depth of breathing, the respiratory system can increase or decrease the elimination of CO2, which affects the pH of the blood.
The renal system (kidneys) plays a crucial role in regulating acid-base balance by controlling the excretion and reabsorption of hydrogen ions (H+) and bicarbonate ions (HCO3-) in the urine. The kidneys can excrete excess acids or bases to help maintain the body's pH within a normal range.
The chemical-buffering systems involve various chemical compounds in the body that can absorb or release hydrogen ions to help maintain pH balance. Examples of chemical buffers include bicarbonate ions (HCO3-), phosphate ions (HPO4-), and proteins.
the cardiovascular and integumentary systemin (option A) is incorrect because they, are not primarily responsible for regulating acid-base balance in the body.

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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
In a teaching plan for the mother of an 11-year-old boy with ulcerative colitis, the nurse should stress the importance of coping with stress and avoiding triggers. Ulcerative colitis is a chronic inflammatory bowel disease that can be influenced by various factors, including stress and triggers. Helping the child and the family develop effective stress management strategies and identifying and avoiding triggers can help in reducing the frequency and severity of ulcerative colitis flare-ups.
preventing the spread of illness to others in (option B) is incorrect because it, is not the primary focus of teaching for ulcerative colitis. Ulcerative colitis is not an infectious condition that can be spread to others.
, nutritional guidance and supportive intake of sodas in (option C) is incorrect because it, is an important aspect of managing ulcerative colitis. However, it should be addressed in conjunction with a comprehensive nutritional plan that considers the individual needs and tolerances of the child. The mention of supportive intake of sodas may not be appropriate, as carbonated beverages can potentially aggravate symptoms in some individuals with ulcerative colitis.
teaching daily use of enemas in (option D) is incorrect because it, is not typically a part of routine care for ulcerative colitis in children. The use of enemas may be considered in specific situations or as part of an individualized treatment plan under the guidance of healthcare providers, but it is not a general teaching point for all children with ulcerative colitis.
Correct Answer is C
Explanation
Celiac disease is an autoimmune disorder triggered by the ingestion of gluten, a protein found in wheat, barley, and rye. It causes damage to the lining of the small intestine, leading to malabsorption of nutrients. The characteristic symptoms of celiac disease include abdominal distention, underweight or failure to thrive, thin arms and legs, and foul-smelling stools.
intussusception in (option A) is incorrect because it, refers to a condition where a portion of the intestine telescopes into an adjacent section, causing an obstruction. While intussusception can present with symptoms such as abdominal pain, vomiting, and currant jelly-like stools, it is not typically associated with failure to thrive.
imperforate anus, in (option B) is incorrect because it is a congenital condition in which the opening of the anus is blocked or absent. It can cause difficulties with passing stools, but it is not typically associated with failure to thrive or the specific assessment findings described.
irritable bowel syndrome (IBS) in (option D) is incorrect because it, is a chronic disorder of the gastrointestinal tract characterized by recurrent abdominal pain, changes in bowel habits, and bloating. While IBS can cause gastrointestinal symptoms, it is not typically associated with failure to thrive, underweight, or the specific assessment findings mentioned.

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