Calcium carbonate is given with meals to a child with chronic renal disease. The purpose of this is to achieve which desired result?
Bind phosphorus.
Increase absorption of fat-soluble vitamins.
Stimulate appetite.
Prevent vomiting.
The Correct Answer is A
Choice A rationale:
Calcium carbonate is often given with meals to individuals with chronic renal disease, especially those on dialysis. One of the primary purposes is to bind dietary phosphorus in the gastrointestinal tract. In chronic renal disease, the kidneys are less effective at filtering out excess phosphorus from the blood, leading to elevated phosphorus levels (hyperphosphatemia). Elevated phosphorus levels can contribute to bone and mineral disorders in these patients. Calcium carbonate forms insoluble calcium phosphate complexes with dietary phosphorus, preventing its absorption and facilitating its elimination from the body through the feces.
Choice B rationale:
While calcium carbonate can interact with fat-soluble vitamins like vitamin D, the primary reason for administering it to individuals with chronic renal disease is to manage phosphorus levels. Calcium carbonate can bind phosphorus and prevent its absorption, which is particularly important for patients with compromised kidney function.
Choice C rationale:
Stimulating appetite is not a primary purpose of administering calcium carbonate to children with chronic renal disease. The main focus is on managing phosphorus levels and preventing complications associated with hyperphosphatemia.
Choice D rationale:
Preventing vomiting is not a primary purpose of giving calcium carbonate to children with chronic renal disease. Calcium carbonate is typically used to manage phosphorus levels and complications related to hyperphosphatemia in this population.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The correct answer is choice C. Therapeutic management includes administration of gamma globulin and aspirin.
Choice A rationale:
The child's fever in Kawasaki disease is not usually responsive to antibiotics within 48 hours. Kawasaki disease is an inflammatory condition of blood vessels, and it doesn't typically respond to antibiotics. The fever associated with Kawasaki disease often persists even with appropriate treatment, and the management focuses on reducing inflammation and preventing complications.
Choice B rationale:
Aspirin is not contraindicated in Kawasaki disease. In fact, aspirin is a key component of the therapeutic management of Kawasaki disease. It is used to reduce inflammation and prevent the development of coronary artery aneurysms, a severe complication of the disease. However, the dosing of aspirin in Kawasaki disease is different from its use for pain relief, and it should be administered under medical supervision.
Choice C rationale:
Therapeutic management of Kawasaki disease does include administration of gamma globulin and aspirin. Gamma globulin is given to reduce the risk of coronary artery involvement and aneurysm formation. Aspirin, at a specific dose regimen, is used to decrease inflammation and platelet aggregation, thus preventing clot formation in the coronary arteries.
Choice D rationale:
The principal area of involvement in Kawasaki disease is not the joints. Kawasaki disease primarily affects the blood vessels, particularly the coronary arteries. The inflammation of these arteries can lead to the development of coronary artery aneurysms, which is a critical concern in Kawasaki disease. Joint involvement is not a prominent feature of this condition.
Correct Answer is A
Explanation
The correct answer is choice A: Anaphylactic shock.
Choice A rationale:
Anaphylactic shock is the correct answer. Anaphylactic shock is a severe and potentially life-threatening allergic reaction that causes massive vasodilation, capillary leakage, and bronchoconstriction. It can occur rapidly after exposure to an allergen such as certain foods, insect stings, medications, or latex. The release of histamine and other inflammatory mediators leads to systemic vasodilation and increased permeability of blood vessels, resulting in a sudden drop in blood pressure and compromised organ perfusion.
Choice B rationale:
Cardiogenic shock is characterized by inadequate cardiac output due to severe heart dysfunction. It is typically caused by conditions like myocardial infarction, heart failure, or other cardiac issues. While allergic reactions can potentially affect the cardiovascular system, the symptoms described in the question are more indicative of anaphylactic shock.
Choice C rationale:
Neurogenic shock results from disruption of sympathetic nervous system control over blood vessel tone, often due to spinal cord injury or severe emotional distress. This leads to widespread vasodilation and a sudden drop in blood pressure. While it can cause hemodynamic instability, it doesn't specifically involve the hypersensitivity reaction and capillary leaks associated with anaphylactic shock.
Choice D rationale:
Hypovolemic shock is caused by a significant loss of blood volume or bodily fluids, leading to decreased intravascular volume and subsequent inadequate tissue perfusion. This shock type is not directly related to a hypersensitivity reaction or capillary leakage caused by allergic responses. 2 / 2
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