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  • Question 1 - Which of the following would normally be expected to increase during pregnancy: ...

    Incorrect

    • Which of the following would normally be expected to increase during pregnancy:

      Your Answer: Haematocrit

      Correct Answer: Thyroxin-binding globulin

      Explanation:

      Thyroid function in pregnancy is altered in two ways; the circulating levels of the thyroid binding proteins are increased, resulting in an increase in the total circulating levels of thyroid hormones (but a slight fall in the free component).

    • This question is part of the following fields:

      • Physiology
      1.7
      Seconds

  • Question 2 - The second stage of labour involves: ...

    Incorrect

    • The second stage of labour involves:

      Your Answer: Effacement of the cervix

      Correct Answer: Expulsion of the foetus

      Explanation:

      First stage: The latent phase is generally defined as beginning at the point at which the woman perceives regular uterine contractions. A definition of active labour is having contractions more frequent than every 5 minutes, in addition to either a cervical dilation of 3 cm or more or a cervical effacement of 80% or more.

      Second stage: fetal expulsion begins when the cervix is fully dilated, and ends when the baby is born.

      Third stage: placenta delivery – The period from just after the foetus is expelled until just after the placenta is expelled is called the third stage of labour or the involution stage.

    • This question is part of the following fields:

      • Physiology
      11.7
      Seconds

  • Question 3 - Which of the following increases during pregnancy? ...

    Incorrect

    • Which of the following increases during pregnancy?

      Your Answer: Vital Capacity

      Correct Answer: Tidal Volume

      Explanation:

      Ventilation begins to increase significantly at around 8 weeks of gestation, most likely in response to progesterone-related sensitization of the respiratory centre to carbon dioxide and the increased metabolic rate. Significant alterations occur in the mechanical aspects of ventilation during pregnancy. Minute ventilation (or the amount of air moved in and out of the lungs in 1 minute) is the product of tidal volume and respiratory rate and increases by approximately 30–50 per cent with pregnancy. The increase is primarily a result of tidal volume, which increases by 40 per cent (from 500 to 700 mL), because the respiratory rate remains unchanged. The increase in minute ventilation is perceived by the pregnant woman as shortness of breath, which affects 60–70 per cent of women. This physiological dyspnoea is usually mild and affects 50 per cent of women before 20 weeks gestation, but resolves immediately postpartum.

    • This question is part of the following fields:

      • Physiology
      4.6
      Seconds

  • Question 4 - The test used to diagnose ovulation on day 21 in a 28 days...

    Correct

    • The test used to diagnose ovulation on day 21 in a 28 days menstrual cycle is:

      Your Answer: Progesterone

      Explanation:

      After ovulation, the dominant follicle turns into a corpus luteum and begins to secrete progesterone. To confirm ovulation, serum progesterone or its metabolite in urine, can be measured. A single serum progesterone level >3 ng/ml in mid‐luteal phase has been used to retrospectively detect ovulation.

    • This question is part of the following fields:

      • Physiology
      1.1
      Seconds

  • Question 5 - What is the primary form of haemoglobin in a 6 week old foetus?...

    Incorrect

    • What is the primary form of haemoglobin in a 6 week old foetus?

      Your Answer: Hb Portland 2

      Correct Answer: Hb Gower 1

      Explanation:

      HB gower 1 is the predominant embryonic haemoglobin when the foetus is 6 weeks old and is replaced by adult haemoglobin by the age of 5 months post natally.

    • This question is part of the following fields:

      • Physiology
      3
      Seconds

  • Question 6 - Excessive increased level of β-HCG is expected in: ...

    Correct

    • Excessive increased level of β-HCG is expected in:

      Your Answer: Twin pregnancy

      Explanation:

      Human chorionic gonadotropin levels dynamically increase during early gestation and the levels are significantly greater in viable pregnancies than in ectopic gestation, biochemical pregnancy, or spontaneous abortions. Similarly, the hCG concentrations are significantly higher in multiple pregnancy as compared with singleton.

    • This question is part of the following fields:

      • Physiology
      3.6
      Seconds

  • Question 7 - If a sample of cervical mucus is taken on the 12th day of...

    Correct

    • If a sample of cervical mucus is taken on the 12th day of the menstrual cycle and examined under the microscope, what kind of findings would be observed?

      Your Answer: A fern pattern characteristic of oestrogen

      Explanation:

      Fern test looks for a specific fern like pattern of cervical mucus when observed under light microscope after the sample is dried. It occurs due to the presence of sodium chloride under oestrogen influence whereas progesterone opposes it.

    • This question is part of the following fields:

      • Physiology
      2.1
      Seconds

  • Question 8 - In normal pregnancy, the value of β-hCG doubles every: ...

    Incorrect

    • In normal pregnancy, the value of β-hCG doubles every:

      Your Answer: 14 days

      Correct Answer: 2 days

      Explanation:

      During early pregnancy, hCG can be detected in the maternal serum as early as 6 to 8 days after fertilization. hCG levels are dynamically increased and doubled every 48 h in most normal pregnancies, and this pattern is similar in both in vivo or in vitro (IVF) conceptions.

    • This question is part of the following fields:

      • Physiology
      3.4
      Seconds

  • Question 9 - A serum progesterone value less than 5ng/ml can exclude the diagnosis of viable...

    Incorrect

    • A serum progesterone value less than 5ng/ml can exclude the diagnosis of viable pregnancy with a certainty of:

      Your Answer: 80%

      Correct Answer: 100%

      Explanation:

      Serum progesterone has been proposed as a useful test to distinguish a viable pregnancy from a miscarriage or ectopic pregnancy. Low progesterone values are associated with miscarriages and ectopic pregnancies, both considered non-viable pregnancies, and high progesterone concentrations with viable pregnancies. A single progesterone measurement for women in early pregnancy presenting with bleeding or pain and inconclusive ultrasound assessments can rule out a viable pregnancy. The probability of a non-viable pregnancy was raised from 62.9% to 96.8%.

    • This question is part of the following fields:

      • Physiology
      2.7
      Seconds

  • Question 10 - Lowered haemoglobin during normal pregnancy is a physiological finding which is mainly due...

    Incorrect

    • Lowered haemoglobin during normal pregnancy is a physiological finding which is mainly due to:

      Your Answer:

      Correct Answer: Increased plasma volume

      Explanation:

      During pregnancy, anaemia increases more than fourfold from the first to third trimester. It is a well established fact that there is a physiological drop in haemoglobin (Hb) in the mid trimester. This physiological drop is attributed to increase of plasma volume and hence decrease of blood viscosity lead to better circulation in placenta.

    • This question is part of the following fields:

      • Physiology
      0
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Physiology (8/9) 89%
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