MRCOG Part 1 – Physiology

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MRCOG Part 1 – Physiology 0%

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Question 1 of 62

1. Question

During pregnancy, which of the following cardiovascular parameters increases the most significantly by the third trimester?

Cardiac output
Correct Incorrect Correct answer

Heart rate variability
Correct Incorrect Correct answer

Mean arterial pressure
Correct Incorrect Correct answer

Pulmonary vascular resistance
Correct Incorrect Correct answer

Systemic vascular resistance
Correct Incorrect Correct answer

Correct

Incorrect

Question 2 of 62

2. Question

Which of the following explains the decrease in systemic vascular resistance during pregnancy?

Decrease in progesterone
Correct Incorrect Correct answer

Increase in circulating aldosterone
Correct Incorrect Correct answer

Increased blood viscosity
Correct Incorrect Correct answer

Increased cardiac contractility
Correct Incorrect Correct answer

Increased production of nitric oxide
Correct Incorrect Correct answer

Correct

Incorrect

Question 3 of 62

3. Question

Which of the following is the primary reason for the physiological anaemia observed during pregnancy?

Decrease in erythropoietin levels
Correct Incorrect Correct answer

Decrease in red blood cell production
Correct Incorrect Correct answer

Expansion of plasma volume
Correct Incorrect Correct answer

Increased haemolysis
Correct Incorrect Correct answer

Increased renal blood flow
Correct Incorrect Correct answer

Correct

Incorrect

Question 4 of 62

4. Question

At what point during pregnancy is cardiac output highest?

At 12 weeks gestation
Correct Incorrect Correct answer

At 24 weeks gestation
Correct Incorrect Correct answer

At the onset of labour
Correct Incorrect Correct answer

During the second stage of labour
Correct Incorrect Correct answer

Immediately postpartum
Correct Incorrect Correct answer

Correct

Incorrect

Question 5 of 62

5. Question

In normal pregnancy, which of the following changes occurs to the blood pressure during the second trimester?

Both systolic and diastolic pressures decrease
Correct Incorrect Correct answer

Diastolic blood pressure increases
Correct Incorrect Correct answer

Diastolic blood pressure remains unchanged
Correct Incorrect Correct answer

Pulse pressure narrows
Correct Incorrect Correct answer

Systolic blood pressure increases
Correct Incorrect Correct answer

Correct

Incorrect

Question 6 of 62

6. Question

Which of the following respiratory parameters increases most significantly during pregnancy?

Functional residual capacity
Correct Incorrect Correct answer

Residual volume
Correct Incorrect Correct answer

Tidal volume
Correct Incorrect Correct answer

Total lung capacity
Correct Incorrect Correct answer

Vital capacity
Correct Incorrect Correct answer

Correct

Incorrect

Question 7 of 62

7. Question

Which of the following best describes the change in arterial blood gases during normal pregnancy?

Decreased PaCO₂ and decreased PaO₂
Correct Incorrect Correct answer

Decreased PaCO₂ and increased PaO₂
Correct Incorrect Correct answer

Increased PaCO₂ and decreased PaO₂
Correct Incorrect Correct answer

Increased PaCO₂ and increased PaO₂
Correct Incorrect Correct answer

No change in PaCO₂ or PaO₂
Correct Incorrect Correct answer

Correct

Incorrect

Question 8 of 62

8. Question

Which of the following best explains the decrease in functional residual capacity (FRC) during pregnancy?

Compression of lungs by the growing uterus
Correct Incorrect Correct answer

Increased alveolar ventilation
Correct Incorrect Correct answer

Increased metabolic rate
Correct Incorrect Correct answer

Increased progesterone levels
Correct Incorrect Correct answer

Increased tidal volume
Correct Incorrect Correct answer

Correct

Incorrect

Question 9 of 62

9. Question

Which of the following statements is true regarding respiratory changes in pregnancy?

Diaphragm mobility is reduced
Correct Incorrect Correct answer

Minute ventilation decreases
Correct Incorrect Correct answer

Oxygen consumption remains unchanged
Correct Incorrect Correct answer

Progesterone increases respiratory sensitivity to CO₂
Correct Incorrect Correct answer

Respiratory rate increases significantly
Correct Incorrect Correct answer

Correct

Incorrect

Question 10 of 62

10. Question

What is the expected change in maternal arterial pH during pregnancy?

Fluctuations between acidosis and alkalosis
Correct Incorrect Correct answer

Mild acidosis with renal compensation
Correct Incorrect Correct answer

Mild alkalosis with renal compensation
Correct Incorrect Correct answer

Severe respiratory alkalosis
Correct Incorrect Correct answer

No change in pH
Correct Incorrect Correct answer

Correct

Incorrect

Question 11 of 62

11. Question

Which of the following best explains why thyroid-binding globulin (TBG) levels increase during pregnancy?

Decreased oestrogen levels
Correct Incorrect Correct answer

Decreased progesterone levels
Correct Incorrect Correct answer

Increased hCG secretion
Correct Incorrect Correct answer

Increased oestrogen levels
Correct Incorrect Correct answer

Increased thyroid-stimulating hormone (TSH) secretion
Correct Incorrect Correct answer

Correct

Incorrect

Question 12 of 62

12. Question

What is the effect of human chorionic gonadotropin (hCG) on maternal thyroid function during early pregnancy?

Decreases free T3 levels
Correct Incorrect Correct answer

Decreases total T4 levels
Correct Incorrect Correct answer

Increases free T4 levels and suppresses TSH
Correct Incorrect Correct answer

Stimulates TSH production
Correct Incorrect Correct answer

Suppresses thyroid hormone production
Correct Incorrect Correct answer

Correct

Incorrect

Question 13 of 62

13. Question

In pregnancy, how does the demand for iodine change?

Iodine is not required for thyroid hormone synthesis
Correct Incorrect Correct answer

Iodine requirements decrease due to decreased renal clearance
Correct Incorrect Correct answer

Iodine requirements increase due to increased thyroid hormone production
Correct Incorrect Correct answer

Iodine requirements increase only after delivery
Correct Incorrect Correct answer

Iodine requirements remain the same
Correct Incorrect Correct answer

Correct

Incorrect

Question 14 of 62

14. Question

Which of the following best describes the typical changes in thyroid-stimulating hormone (TSH) levels during the first trimester of pregnancy?

TSH levels decrease
Correct Incorrect Correct answer

TSH levels fluctuate widely
Correct Incorrect Correct answer

TSH levels increase
Correct Incorrect Correct answer

TSH levels remain unchanged
Correct Incorrect Correct answer

TSH is undetectable in pregnancy
Correct Incorrect Correct answer

Correct

Incorrect

Question 15 of 62

15. Question

Which of the following conditions is most commonly associated with maternal hypothyroidism in pregnancy?

De Quervain’s thyroiditis
Correct Incorrect Correct answer

Graves' disease
Correct Incorrect Correct answer

Hashimoto’s thyroiditis
Correct Incorrect Correct answer

Postpartum thyroiditis
Correct Incorrect Correct answer

Subacute thyroiditis
Correct Incorrect Correct answer

Correct

Incorrect

Question 16 of 62

16. Question

What is the primary haematological change that occurs in pregnancy?

Decreased fibrinogen levels
Correct Incorrect Correct answer

Decreased platelet count
Correct Incorrect Correct answer

Increased haemoglobin concentration
Correct Incorrect Correct answer

Increased red blood cell mass
Correct Incorrect Correct answer

Increased white blood cell count
Correct Incorrect Correct answer

Correct

Incorrect

Question 17 of 62

17. Question

Which of the following is a common haematological finding in pregnant women during the third trimester?

Hypercoagulability
Correct Incorrect Correct answer

Increased eosinophil count
Correct Incorrect Correct answer

Iron deficiency anaemia
Correct Incorrect Correct answer

Leukopenia
Correct Incorrect Correct answer

Thrombocytopenia
Correct Incorrect Correct answer

Correct

Incorrect

Question 18 of 62

18. Question

What is the expected change in the white blood cell count during pregnancy?

Decrease to below 3,000 cells/mm³
Correct Incorrect Correct answer

Decrease to less than 4,000 cells/mm³
Correct Incorrect Correct answer

Increase to 6,000–16,000 cells/mm³
Correct Incorrect Correct answer

Increase above 20,000 cells/mm³
Correct Incorrect Correct answer

Remains unchanged
Correct Incorrect Correct answer

Correct

Incorrect

Question 19 of 62

19. Question

Which haematological abnormality is most likely to develop due to iron deficiency in pregnancy?

Macrocytic anaemia
Correct Incorrect Correct answer

Microcytic anaemia
Correct Incorrect Correct answer

Normocytic anaemia
Correct Incorrect Correct answer

Thrombocytopaenia
Correct Incorrect Correct answer

Thrombocytosis
Correct Incorrect Correct answer

Correct

Incorrect

Question 20 of 62

20. Question

What is the effect of pregnancy on coagulation factors?

Decreased levels of all coagulation factors
Correct Incorrect Correct answer

Decreased levels of factor VIII
Correct Incorrect Correct answer

Increased levels of antithrombin III
Correct Incorrect Correct answer

Increased levels of coagulation factors I, II, VII, VIII, and X
Correct Incorrect Correct answer

No change in coagulation factor levels
Correct Incorrect Correct answer

Correct

Incorrect

Question 21 of 62

21. Question

What hormone is primarily responsible for the initiation of milk production in the mammary glands?

Human placental lactogen (hPL)
Correct Incorrect Correct answer

Oestrogen
Correct Incorrect Correct answer

Oxytocin
Correct Incorrect Correct answer

Progesterone
Correct Incorrect Correct answer

Prolactin
Correct Incorrect Correct answer

Correct

Incorrect

Question 22 of 62

22. Question

Which hormone facilitates the ejection of milk from the mammary glands during breastfeeding?

Cortisol
Correct Incorrect Correct answer

Oestrogen
Correct Incorrect Correct answer

Oxytocin
Correct Incorrect Correct answer

Progesterone
Correct Incorrect Correct answer

Prolactin
Correct Incorrect Correct answer

Correct

Incorrect

Question 23 of 62

23. Question

Which of the following best describes the composition of human breast milk?

A balance of proteins, fats, and carbohydrates
Correct Incorrect Correct answer

High in proteins and low in fats
Correct Incorrect Correct answer

Primarily carbohydrates and vitamins
Correct Incorrect Correct answer

Primarily fat and water
Correct Incorrect Correct answer

Primarily minerals and trace elements
Correct Incorrect Correct answer

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Incorrect

Question 24 of 62

24. Question

What is the primary mechanism by which the body regulates acid-base balance in the short term?

Buffering systems
Correct Incorrect Correct answer

Gastrointestinal secretion
Correct Incorrect Correct answer

Hepatic metabolism
Correct Incorrect Correct answer

Respiratory compensation
Correct Incorrect Correct answer

Renal compensation
Correct Incorrect Correct answer

Correct

Incorrect

Question 25 of 62

25. Question

Which of the following is the main extracellular buffer system in the human body?

Ammonia
Correct Incorrect Correct answer

Bicarbonate
Correct Incorrect Correct answer

Haemoglobin
Correct Incorrect Correct answer

Phosphate
Correct Incorrect Correct answer

Proteins
Correct Incorrect Correct answer

Correct

Incorrect

Question 26 of 62

26. Question

In metabolic acidosis, which of the following compensatory mechanisms is typically observed?

Decreased production of lactic acid
Correct Incorrect Correct answer

Decreased renal excretion of hydrogen ions
Correct Incorrect Correct answer

Decreased respiratory rate
Correct Incorrect Correct answer

Increased respiratory rate
Correct Incorrect Correct answer

Increased renal excretion of bicarbonate
Correct Incorrect Correct answer

Correct

Incorrect

Question 27 of 62

27. Question

Which condition is characterized by an elevated anion gap metabolic acidosis?

Diarrhoea
Correct Incorrect Correct answer

Lactic acidosis
Correct Incorrect Correct answer

Primary hyperaldosteronism
Correct Incorrect Correct answer

Renal tubular acidosis
Correct Incorrect Correct answer

Vomiting
Correct Incorrect Correct answer

Correct

Incorrect

Question 28 of 62

28. Question

What is the effect of hyperventilation on acid-base balance?

Decrease in blood pH
Correct Incorrect Correct answer

Increase in blood carbon dioxide levels
Correct Incorrect Correct answer

Increase in blood bicarbonate levels
Correct Incorrect Correct answer

Increase in blood pH
Correct Incorrect Correct answer

No change in blood pH
Correct Incorrect Correct answer

Correct

Incorrect

Question 29 of 62

29. Question

Which of the following changes in fat metabolism is most commonly observed during pregnancy?

Decreased circulating triglyceride levels
Correct Incorrect Correct answer

Decreased lipogenesis and increased lipolysis
Correct Incorrect Correct answer

Increased lipolysis and decreased fatty acid oxidation
Correct Incorrect Correct answer

Increased lipogenesis and decreased lipolysis
Correct Incorrect Correct answer

Increased lipogenesis and increased fatty acid oxidation
Correct Incorrect Correct answer

Correct

Incorrect

Question 30 of 62

30. Question

What is the primary source of energy for the fetus during the second and third trimesters of pregnancy?

Amino acids
Correct Incorrect Correct answer

Free fatty acids
Correct Incorrect Correct answer

Glucose
Correct Incorrect Correct answer

Ketone bodies
Correct Incorrect Correct answer

Lactate
Correct Incorrect Correct answer

Correct

Incorrect

Question 31 of 62

31. Question

What effect does pregnancy have on lipid profiles, particularly triglyceride levels?

Decreased LDL cholesterol only
Correct Incorrect Correct answer

Decreased triglyceride levels
Correct Incorrect Correct answer

Increased HDL cholesterol only
Correct Incorrect Correct answer

Increased triglyceride levels
Correct Incorrect Correct answer

No change in triglyceride levels
Correct Incorrect Correct answer

Correct

Incorrect

Question 32 of 62

32. Question

Which fatty acid is particularly important for fetal brain development during pregnancy?

Arachidonic acid
Correct Incorrect Correct answer

Docosahexaenoic acid (DHA)
Correct Incorrect Correct answer

Linoleic acid
Correct Incorrect Correct answer

Oleic acid
Correct Incorrect Correct answer

Stearic acid
Correct Incorrect Correct answer

Correct

Incorrect

Question 33 of 62

33. Question

What is the major protein synthesized by the liver that is essential for blood coagulation?

Albumin
Correct Incorrect Correct answer

Fibrinogen
Correct Incorrect Correct answer

Haemoglobin
Correct Incorrect Correct answer

Immunoglobulin
Correct Incorrect Correct answer

Prothrombin
Correct Incorrect Correct answer

Correct

Incorrect

Question 34 of 62

34. Question

What is the role of the liver in cholesterol metabolism?

Conversion of cholesterol to bile acids
Correct Incorrect Correct answer

Conversion of glucose to cholesterol only during fasting
Correct Incorrect Correct answer

Production of ketone bodies
Correct Incorrect Correct answer

Storage of triglycerides exclusively
Correct Incorrect Correct answer

Synthesis of all essential fatty acids
Correct Incorrect Correct answer

Correct

Incorrect

Question 35 of 62

35. Question

Which of the following liver function tests is typically increased during normal pregnancy due to hormonal changes?

Alanine aminotransferase (ALT)
Correct Incorrect Correct answer

Alkaline phosphatase (ALP)
Correct Incorrect Correct answer

Aspartate aminotransferase (AST)
Correct Incorrect Correct answer

Bilirubin
Correct Incorrect Correct answer

Prothrombin time
Correct Incorrect Correct answer

Correct

Incorrect

Question 36 of 62

36. Question

What is the effect of pregnancy on bilirubin metabolism?

Decreased production and decreased excretion
Correct Incorrect Correct answer

Decreased production and increased excretion
Correct Incorrect Correct answer

Increased production and decreased excretion
Correct Incorrect Correct answer

Increased production and increased excretion
Correct Incorrect Correct answer

No change in bilirubin metabolism
Correct Incorrect Correct answer

Correct

Incorrect

Question 37 of 62

37. Question

Which of the following is a common change in liver function tests observed during the third trimester of pregnancy?

Decreased alkaline phosphatase levels
Correct Incorrect Correct answer

Decreased prothrombin time
Correct Incorrect Correct answer

Decreased serum albumin levels
Correct Incorrect Correct answer

Increased serum aminotransferases (AST and ALT)
Correct Incorrect Correct answer

Increased prothrombin time
Correct Incorrect Correct answer

Correct

Incorrect

Question 38 of 62

38. Question

What is the effect of 2,3-bisphosphoglycerate (2,3-BPG) on haemoglobin’s affinity for oxygen?

Decreases affinity for oxygen
Correct Incorrect Correct answer

Decreases carbon dioxide binding
Correct Incorrect Correct answer

Has no effect on oxygen affinity
Correct Incorrect Correct answer

Increases affinity for oxygen
Correct Incorrect Correct answer

Increases oxygen saturation
Correct Incorrect Correct answer

Correct

Incorrect

Question 39 of 62

39. Question

Which of the following conditions can lead to a rightward shift in the oxygen-hemoglobin dissociation curve?

Decreased 2,3-BPG levels
Correct Incorrect Correct answer

Decreased carbon dioxide levels
Correct Incorrect Correct answer

Decreased temperature
Correct Incorrect Correct answer

Increased levels of carbon dioxide
Correct Incorrect Correct answer

Increased pH
Correct Incorrect Correct answer

Correct

Incorrect

Question 40 of 62

40. Question

What type of haemoglobin is typically found in a healthy adult?

Haemoglobin A (HbA)
Correct Incorrect Correct answer

Haemoglobin A2 (HbA2)
Correct Incorrect Correct answer

Haemoglobin F (HbF)
Correct Incorrect Correct answer

Haemoglobin S (HbS)
Correct Incorrect Correct answer

Methaemoglobin
Correct Incorrect Correct answer

Correct

Incorrect

Question 41 of 62

41. Question

In which condition would you expect to see elevated levels of carboxyhaemoglobin?

Carbon monoxide poisoning
Correct Incorrect Correct answer

Chronic obstructive pulmonary disease (COPD)
Correct Incorrect Correct answer

Haemolytic anaemia
Correct Incorrect Correct answer

High altitude exposure
Correct Incorrect Correct answer

Iron deficiency anaemia
Correct Incorrect Correct answer

Correct

Incorrect

Question 42 of 62

42. Question

What is the primary form of haemoglobin found in the fetus?

Haemoglobin A (HbA)
Correct Incorrect Correct answer

Haemoglobin A2 (HbA2)
Correct Incorrect Correct answer

Haemoglobin F (HbF)
Correct Incorrect Correct answer

Haemoglobin S (HbS)
Correct Incorrect Correct answer

Methaemoglobin
Correct Incorrect Correct answer

Correct

Incorrect

Question 43 of 62

43. Question

What is the significance of fetal haemoglobin’s higher affinity for oxygen compared to adult haemoglobin?

It allows for a higher production of 2,3-BPG
Correct Incorrect Correct answer

It allows for more efficient oxygen delivery to tissues
Correct Incorrect Correct answer

It facilitates oxygen release in peripheral tissues
Correct Incorrect Correct answer

It promotes carbon dioxide binding
Correct Incorrect Correct answer

It reduces the risk of fetal hypoxia
Correct Incorrect Correct answer

Correct

Incorrect

Question 44 of 62

44. Question

At what stage of gestation does fetal haemoglobin production primarily occur?

At birth
Correct Incorrect Correct answer

First trimester
Correct Incorrect Correct answer

Postnatal
Correct Incorrect Correct answer

Second trimester
Correct Incorrect Correct answer

Third trimester
Correct Incorrect Correct answer

Correct

Incorrect

Question 45 of 62

45. Question

What is the typical percentage of fetal haemoglobin in a newborn at term?

10-20%
Correct Incorrect Correct answer

30-40%
Correct Incorrect Correct answer

50-60%
Correct Incorrect Correct answer

70-90%
Correct Incorrect Correct answer

90-100%
Correct Incorrect Correct answer

Correct

Incorrect

Question 46 of 62

46. Question

At what stage of meiosis are primary oocytes arrested at birth?

Anaphase I
Correct Incorrect Correct answer

Metaphase I
Correct Incorrect Correct answer

Metaphase II
Correct Incorrect Correct answer

Prophase I
Correct Incorrect Correct answer

Telophase I
Correct Incorrect Correct answer

Correct

Incorrect

Question 47 of 62

47. Question

Which hormone is primarily responsible for triggering the final maturation of oocytes prior to ovulation?

Follicle-stimulating hormone (FSH)
Correct Incorrect Correct answer

Human chorionic gonadotropin (hCG)
Correct Incorrect Correct answer

Luteinizing hormone (LH)
Correct Incorrect Correct answer

Oestrogen
Correct Incorrect Correct answer

Progesterone
Correct Incorrect Correct answer

Correct

Incorrect

Question 48 of 62

48. Question

Which of the following statements about oogenesis is true?

Each menstrual cycle, some primary oocytes mature into secondary oocytes
Correct Incorrect Correct answer

Oogenesis is completed in the fallopian tubes
Correct Incorrect Correct answer

Oogenesis is initiated before birth and resumes at puberty
Correct Incorrect Correct answer

Oogenesis produces four viable gametes from one primary oocyte
Correct Incorrect Correct answer

The process of oogenesis is continuous throughout a woman's life
Correct Incorrect Correct answer

Correct

Incorrect

Question 49 of 62

49. Question

What is the primary site of spermatogenesis in males?

Bulbourethral glands
Correct Incorrect Correct answer

Epididymis
Correct Incorrect Correct answer

Prostate gland
Correct Incorrect Correct answer

Seminiferous tubules
Correct Incorrect Correct answer

Vas deferens
Correct Incorrect Correct answer

Correct

Incorrect

Question 50 of 62

50. Question

At which stage of development do spermatogonia undergo their first meiotic division?

Primary spermatocyte
Correct Incorrect Correct answer

Secondary spermatocyte
Correct Incorrect Correct answer

Spermatid
Correct Incorrect Correct answer

Spermatogonium
Correct Incorrect Correct answer

Spermatozoa
Correct Incorrect Correct answer

Correct

Incorrect

Question 51 of 62

51. Question

Which hormone is primarily responsible for increasing serum calcium levels?

Calcitonin
Correct Incorrect Correct answer

Cortisol
Correct Incorrect Correct answer

Oestrogen
Correct Incorrect Correct answer

Parathyroid hormone (PTH)
Correct Incorrect Correct answer

Vitamin D
Correct Incorrect Correct answer

Correct

Incorrect

Question 52 of 62

52. Question

What is the primary site of calcium absorption in the body?

Colon
Correct Incorrect Correct answer

Duodenum
Correct Incorrect Correct answer

Ileum
Correct Incorrect Correct answer

Liver
Correct Incorrect Correct answer

Stomach
Correct Incorrect Correct answer

Correct

Incorrect

Question 53 of 62

53. Question

Which of the following is a common physiological consequence of hypocalcaemia?

Decreased bone density
Correct Incorrect Correct answer

Increased neuromuscular excitability
Correct Incorrect Correct answer

Hyperparathyroidism
Correct Incorrect Correct answer

Muscle weakness
Correct Incorrect Correct answer

Renal failure
Correct Incorrect Correct answer

Correct

Incorrect

Question 54 of 62

54. Question

What effect does calcitonin have on calcium levels in the body?

Decreases serum calcium levels
Correct Incorrect Correct answer

Enhances intestinal calcium absorption
Correct Incorrect Correct answer

Increases bone resorption
Correct Incorrect Correct answer

Increases serum calcium levels
Correct Incorrect Correct answer

Stimulates PTH secretion
Correct Incorrect Correct answer

Correct

Incorrect

Question 55 of 62

55. Question

Which placental hormone is known to increase maternal insulin resistance during pregnancy?

Human chorionic gonadotropin (hCG)
Correct Incorrect Correct answer

Human placental lactogen (hPL)
Correct Incorrect Correct answer

Oestrogen
Correct Incorrect Correct answer

Progesterone
Correct Incorrect Correct answer

Relaxin
Correct Incorrect Correct answer

Correct

Incorrect

Question 56 of 62

56. Question

What does central venous pressure (CVP) primarily reflect in a clinical setting?

Cardiac output
Correct Incorrect Correct answer

Left atrial pressure
Correct Incorrect Correct answer

Pulmonary artery pressure
Correct Incorrect Correct answer

Right atrial pressure
Correct Incorrect Correct answer

Systemic vascular resistance
Correct Incorrect Correct answer

Correct

Incorrect

Question 57 of 62

57. Question

What is the normal range for central venous pressure in healthy adults?

0-2 mmHg
Correct Incorrect Correct answer

2-6 mmHg
Correct Incorrect Correct answer

6-10 mmHg
Correct Incorrect Correct answer

10-12 mmHg
Correct Incorrect Correct answer

12-15 mmHg
Correct Incorrect Correct answer

Correct

Incorrect

Question 58 of 62

58. Question

Which type of alveolar cell is primarily responsible for the production of surfactant in the fetal lungs?

Clara cells
Correct Incorrect Correct answer

Endothelial cells
Correct Incorrect Correct answer

Macrophages
Correct Incorrect Correct answer

Type I alveolar cells
Correct Incorrect Correct answer

Type II alveolar cells
Correct Incorrect Correct answer

Correct

Incorrect

Question 59 of 62

59. Question

At what gestational age does significant production of pulmonary surfactant typically begin in the fetus?

20 weeks
Correct Incorrect Correct answer

24 weeks
Correct Incorrect Correct answer

28 weeks
Correct Incorrect Correct answer

34 weeks
Correct Incorrect Correct answer

36 weeks
Correct Incorrect Correct answer

Correct

Incorrect

Question 60 of 62

60. Question

What is the primary function of surfactant produced by fetal alveolar cells?

Enhancing lung perfusion
Correct Incorrect Correct answer

Facilitating gas exchange
Correct Incorrect Correct answer

Increasing lung volume
Correct Incorrect Correct answer

Preventing infection
Correct Incorrect Correct answer

Reducing surface tension
Correct Incorrect Correct answer

Correct

Incorrect

Question 61 of 62

61. Question

Which condition in the newborn is characterized by insufficient surfactant production, leading to respiratory distress?

Congenital diaphragmatic hernia
Correct Incorrect Correct answer

Meconium aspiration syndrome
Correct Incorrect Correct answer

Neonatal sepsis
Correct Incorrect Correct answer

Respiratory distress syndrome (RDS)
Correct Incorrect Correct answer

Transient tachypnea of the newborn
Correct Incorrect Correct answer

Correct

Incorrect

Question 62 of 62

62. Question

Which vitamin is essential for fetal neural tube development and should be supplemented during pregnancy?

Vitamin A
Correct Incorrect Correct answer

Vitamin B12
Correct Incorrect Correct answer

Vitamin C
Correct Incorrect Correct answer

Folate (Vitamin B9)
Correct Incorrect Correct answer

Vitamin D
Correct Incorrect Correct answer

Correct

Incorrect