Which structural defects constitute tetralogy of Fallot?
Pulmonic stenosis, ventricular septal defect, aortic hypertrophy, left ventricular hypertrophy.
Pulmonic stenosis, ventricular septal defect, overriding aorta, right ventricular hypertrophy.
Aortic stenosis, ventricular septal defect, overriding aorta, right ventricular hypertrophy.
Aortic stenosis, atrial septal defect, overriding aorta, left ventricular hypertrophy.
The Correct Answer is B
The correct answer is choice B: Pulmonic stenosis, ventricular septal defect, overriding aorta, right ventricular hypertrophy.
Choice A rationale:
Pulmonic stenosis, ventricular septal defect, aortic hypertrophy, left ventricular hypertrophy. This choice is incorrect because it includes "aortic hypertrophy" and "left ventricular hypertrophy," which are not components of the tetralogy of Fallot. Aortic hypertrophy is not a recognized structural defect in tetralogy of Fallot, and left ventricular hypertrophy is not a characteristic feature of this congenital heart condition.
Choice B rationale:
Pulmonic stenosis, ventricular septal defect, overriding aorta, right ventricular hypertrophy. This is the correct choice. Tetralogy of Fallot is characterized by four specific structural defects: pulmonic stenosis (narrowing of the pulmonary valve), ventricular septal defect (hole between the right and left ventricles), overriding aorta (aorta positioned over the ventricular septal defect, receiving blood from both ventricles), and right ventricular hypertrophy (enlargement of the right ventricle due to increased workload).
Choice C rationale:
Aortic stenosis, ventricular septal defect, overriding aorta, right ventricular hypertrophy. This choice is incorrect because it includes "aortic stenosis," which is not part of the tetralogy of Fallot. In tetralogy of Fallot, the stenosis occurs at the pulmonary valve, not the aortic valve.
Choice D rationale:
Aortic stenosis, atrial septal defect, overriding aorta, left ventricular hypertrophy. This choice is incorrect. While "overriding aorta" is present in tetralogy of Fallot, "atrial septal defect" and "left ventricular hypertrophy" are not part of this condition. Atrial septal defects involve a hole between the two atria, not the ventricles, and left ventricular hypertrophy is not typically seen in tetralogy of Fallot.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is choice A: Administer pancreatic enzymes between meals if at all possible.
Choice A rationale:
Administer pancreatic enzymes between meals if at all possible. This is the correct choice. When educating the parents and child with cystic fibrosis about the administration of pancreatic enzymes, it's important to emphasize that these enzymes should be given between meals whenever feasible. Administering them between meals, when the stomach is less acidic and less likely to release the enzymes prematurely, ensures optimal digestion of food and absorption of nutrients. This approach aligns with the physiological need to supplement pancreatic enzyme function due to the inadequate natural enzyme production in cystic fibrosis.
Choice B rationale:
Pancreatic enzymes can be swallowed whole or sprinkled on a small amount of food taken at the beginning of a meal. This choice is a valid option for administering pancreatic enzymes. While it's true that the enzymes can be taken either by swallowing the capsules whole or by opening them and sprinkling the contents on a small amount of food at the start of a meal, this method can vary based on individual preferences and abilities. However, the primary focus should be on timing (between meals) to achieve the best enzymatic action.
Choice C rationale:
Do not administer pancreatic enzymes if the child is receiving antibiotics. This statement is not accurate. There is no general contraindication to administering pancreatic enzymes while a child is on antibiotics. However, it's important for the healthcare provider to be aware of all the medications the child is taking to ensure there are no potential drug interactions or effects on absorption. Always consult with the healthcare team before adjusting the administration of any medication.
Choice D rationale:
Decrease the dose of pancreatic enzymes if the child is having frequent, bulky stools. This statement is not consistent with typical practice. If a child is experiencing frequent, bulky stools, it may actually indicate that the pancreatic enzyme dosage needs adjustment (increasing the dose rather than decreasing). Bulky stools can suggest poor digestion and absorption, which might require more enzymes to properly break down nutrients. Dosage adjustments should always be made under the guidance of the healthcare provider based on factors such as stool consistency, weight gain, and nutritional status.
Correct Answer is ["2.6"]
Explanation
Step 1: Calculate the total mg per dose. 325 mg × 2 tablets = 650 mg
Step 2: Calculate the number of doses in 24 hours. 24 hours ÷ 6 hours = 4 doses
Step 3: Calculate the total mg in 24 hours. 650 mg × 4 doses = 2600 mg
Step 4: Convert mg to grams. 2600 mg ÷ 1000 = 2.6
Answer: 2.6
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