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Author Question: Marked changes occur in the cardiopulmonary system at birth include which of the following? Note: ... (Read 68 times)

V@ndy87

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Marked changes occur in the cardiopulmonary system at birth include which of the following? Note: Credit will be given only if all correct choices and no incorrect choices are selected. Select all that apply.
 
  1. Closure of the foramen ovale
  2. Closure of the ductus venosus
  3. Mean blood pressure of 31 to 61 mmHg in full-term resting newborns
  4. Increased systemic vascular resistance and decreased pulmonary vascular resistance
  5. Opening of the ductus arteriosus

Question 2

The nurse is instructing a pregnant patient on her nutritional needs.
 
  The nurse tells the patient that nutrition is needed for fetal development because fetal growth occurs in overlapping stages from increased: Note: Credit will be given only if all correct and no incorrect choices are selected. Select all that apply. 1. Cell numbers.
  2. Growth spurts every month.
  3. Cell size and number.
  4. Cell size alone.
  5. Vitamin and mineral intake.



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mochi09

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Answer to Question 1

1, 2, 4
Explanation: 1. Closure of the foramen ovale is a function of changing arterial pressures.
2. Closure of the ductus venosus is related to mechanical pressure changes that result from severing the cord, redistribution of blood, and cardiac output.
4. Increased systemic vascular resistance and decreased pulmonary vascular resistance; with the loss of the low-resistance placenta, systemic vascular resistance increases, resulting in greater systemic pressure. The combination of vasodilation and increased pulmonary blood flow decreases pulmonary vascular resistance.

Answer to Question 2

1,3,4
Rationale 1: Fetal growth occurs by an increase in cell numbers in one stage.
Rationale 2: Growth of the fetus occurs steadily over time.
Rationale 3: Fetal growth occurs by an increase in cell size and number during one stage.
Rationale 4: Fetal growth occurs by an increase in cell size alone during one stage.
Rationale 5: A balanced diet is needed to ensure proper fetal development, so all nutrients are needed, not just vitamins and minerals.




V@ndy87

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Reply 2 on: Jun 27, 2018
Excellent


sultana.d

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Reply 3 on: Yesterday
Gracias!

 

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