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  • Question 1 - Which of the following tests is used to detect antibodies or complement bound...

    Incorrect

    • Which of the following tests is used to detect antibodies or complement bound to red blood cell antigens in vivo?

      Your Answer: Indirect Coombs

      Correct Answer: Direct Coombs

      Explanation:

      When the red cells are coated with immune IgG antibody, the cells do not agglutinate but when anti-IgG antiserum is added to these sensitized cells visible agglutination occurs. This is known as a positive direct coombs test.

    • This question is part of the following fields:

      • Physiology
      10.5
      Seconds

  • Question 2 - What is the most common cause of hypercalcaemia? ...

    Correct

    • What is the most common cause of hypercalcaemia?

      Your Answer: Primary hyperparathyroidism

      Explanation:

      Primary hyperparathyroidism is the most common cause of hypercalcaemia with incidence rates in the UK approximately 30 per 100,000 The majority of patients are postmenopausal women.

    • This question is part of the following fields:

      • Physiology
      5
      Seconds

  • Question 3 - In the foetus, the most well oxygenated blood flows into which part of...

    Correct

    • In the foetus, the most well oxygenated blood flows into which part of the heart:

      Your Answer: Right atrium

      Explanation:

      The placenta accepts the blue, unoxygenated blood from the foetus through blood vessels that leave the foetus through the umbilical cord (umbilical arteries, there are two of them). When blood goes through the placenta it picks up oxygen and becomes red. The red blood then returns to the foetus via the third vessel in the umbilical cord, the umbilical vein. The red blood that enters the foetus passes through the fetal liver and enters the right side of the heart.

    • This question is part of the following fields:

      • Physiology
      12.8
      Seconds

  • Question 4 - The average normal heart rate of a foetus at term is : ...

    Incorrect

    • The average normal heart rate of a foetus at term is :

      Your Answer:

      Correct Answer: 120-160 bpm

      Explanation:

      The normal fetal heart rate ranges from 120-160 beats per minute in the uterine period.

    • This question is part of the following fields:

      • Physiology
      0
      Seconds

  • Question 5 - Excessive increased level of β-HCG is expected in: ...

    Incorrect

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

      Your Answer:

      Correct 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
      0
      Seconds

  • Question 6 - Fetal blood is returned to the umbilical arteries & the placenta via the:...

    Incorrect

    • Fetal blood is returned to the umbilical arteries & the placenta via the:

      Your Answer:

      Correct Answer: Hypogastric arteries

      Explanation:

      In the foetus, the hypogastric artery ascends along the side of the bladder, and runs upward on the back of the anterior wall of the abdomen to the umbilicus, converging toward its fellow of the opposite side. Having passed through the umbilical opening, the two arteries, now termed umbilical, enter the umbilical cord, where they are coiled around the umbilical vein, and ultimately ramify in the placenta.

    • This question is part of the following fields:

      • Physiology
      0
      Seconds

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

    Incorrect

    • 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:

      Correct 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
      0
      Seconds

  • Question 8 - During wound healing the clotting cascade is activated. Which of the following activates...

    Incorrect

    • During wound healing the clotting cascade is activated. Which of the following activates the extrinsic pathway?

      Your Answer:

      Correct Answer: Tissue Factor

      Explanation:

      The extrinsic pathway is activated by the tissue factor, which converts factor VII to VIIa which later on converts factors X and II to their activated form finally leading to the conversion of fibrinogen to fibrin fibres.

    • This question is part of the following fields:

      • Physiology
      0
      Seconds

  • Question 9 - What is the average lifespan of a basophil (white blood cell)? ...

    Incorrect

    • What is the average lifespan of a basophil (white blood cell)?

      Your Answer:

      Correct Answer: 3-4 days

      Explanation:

      Basophils are granulocytic white blood cells. They express IgE antibody on their surface and react to release prostaglandins and leukotrienes to mediate an inflammatory, allergic reaction.
      Blood Cell Lifespans:
      Red Blood Cells 120 days
      Platelets 5-9 days
      White blood cells 2-5 days

      Neutrophils (up to 5 days)
      Basophils (2 to 3 days)
      Eosinophils (2 to 5 days)
      Monocytes (1 to 5 days)
      Lymphocytes (variable)

    • This question is part of the following fields:

      • Physiology
      0
      Seconds

  • Question 10 - The test used to diagnose ovulation on day 21 in a 28 days...

    Incorrect

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

      Your Answer:

      Correct 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
      0
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Physiology (2/3) 67%
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