PHYSIOLOGY – MCQ – StudyFCPS

1. Preterm rupture of the membranes is most strictly defined as spontaneous rupture at any time prior to which of the following?

A. A stage of fetal viability
B. The second stage of labor
C. The 32nd week of gestation
D. The onset of labor
E. The 37th week of gestation

2. A 25 years old primi attends antenatal clinic for a routine check at 28 weeks gestation.Her urine dipstick shows glucose 2+.she says she had just eaten her breakfast.Which of the following describes the sequential handling of glucose by the kidney?

A. Filtered,reabsorbed & secreted
B. Filtered,reabsorbed & not secreted
C. Filtered,secreted but not reabsorbed
D. Filtered & neither secreted or reabsorbed.
E. Unfiltered ,secreted.

3. Which of the following is unable to bind with fetal Hb?

A. 2,3 –diphosphoglycerate
B. Carbon dioxide
C. Carbon monoxide
D. Nitrous oxide
E. Oxygen

4. A 65 year old is undergoing lung function tests prior to a renal surgery.Which of the following gives the correct lung volume equation?

A. Functional residual capacity=residual vol+ tidal Vol
B. Inspiratory capacity=tidal vol+expiratory reserve vol
C. Inspiratory capacity=inspiratory reserve vol-tidal vol
D. Total lung capacity=inspiratory capacity+ respiratory vol
E. Vital capacity=inspiratory capacity+expiratory reserve vol

5. A 35-year-old woman is being treated for primary subfertility. A pelvic usg shows multiple small follicles in both ovaries. She is on follicle monitoring as she has irregular cycles. What is the approximate size of the dominant ovarian follicle at the time of ovulation?

A. 1-2 mm
B. 5 mm
C. 20 mm
D. 50 mm
E. 30-40 mm

6. A 2 week old neonate is admitted to hospital with tachypnoea & difficulty in feeding.He is thought to have a circulatory defect & given a prostaglandin antagonist.Which structure that is patent in a fetus but closes at birth ,gets closed by administration of prostaglandin antagonist?

A. Ductus arteriosus
B. Ductus venosus
C. Foramne ovale
D. Fossa ovalis
E. Ligamentum venosum

7. During lactation the letdown reflex to aid lactation,is stimulated by which of the following hormones?

A. Human placental lactogen
B. Angiotensin
C. Oxytocin
D. Parathyroid hormone
E. Vasopressin

8. A 65 year old is admitted to hospital with frequency of urination & extreme thirst.Her blood tests reveal deranged urea & electrolytes.The provisional diagnosis is diabetes insipidus. Which hormone acts in the nephron, to increase the permeability of the collecting ducts to water?

A. Aldosterone
B. Angiotensin
C. Atrial natriuretic peptide
D. Parathyroid hormone
E. Vasopressin

9. Which of the following causes a shift of oxygen dissociation curve to left?

A. Decreased Hb
B. Decreased 2,3 diphosphoglycerate
C. Increased acidity
D. Increased carbon dioxide
E. increased temperature

10. Of the following is not a normal change in the ECG as shown in pregnancy?

A. Left axis deviation
B. T wave inversion in lead III
C. Prolongation of PR interval
D. Q waves in avf
E. Increased heart rate

11. Which of the following is true with regards to 3rd stage of labour?

A. Oxytocin levels rise
B. Raised prostaglandin levels cause myometrial contraction.
C. Beta agonists can be used to mange this stage
D. Use of synthetic prostaglandins is contraindicated
E. Ergometrine is contraindicated if there is a fibroid uterus.

12. A 32 year old primi is seen by you in the antenatal clinic at 32 weeks of gestation.she complains of bluish discoluration of the veins in her calf region,which you diagnose as varicose veins.what is the most likely cause?

A. Decreased vascular resistance
B. Increased plasma volume
C. Infection
D. Pressure effect of the gravid uterus on the inferior vena cava
E. Increased cardiac output.

13. During pregnancy at what gestation is anemia due to physiological dilution seen as the maximum?

A. 12 weeks
B. 24 weeks
C. 28 weeks
D. 32 weeks
E. 36 weeks

14. With regards to the cardiovascular system,how is the stroke volume calculated?

A. Stroke vol=end diastolic volume-end systolic volume
B. Stroke vol=cardiac output/body surface area
C. Stroke vol=end systolic vol-end diastolic vol
D. Stroke vol=end systolic vol+end diastolic vol
E. Stroke vol=end diastolic vol+end systolic vol

15. In the third trimester,at what hemoglobin is a woman labelled as having anemia,according to UK guidelines?

A. <100 g/L
B. <90 g/L
C. <105 g/L
D. <110g/L
E. <95 g/L

16. Which of the following increases in pregnancy?

A. Total lung capacity.
B. Vital capacity
C. Expiratory reserve volume
D. Functional residual capacity
E. Tidal volume

17. Regarding renal blood flow in pregnancy,which of the following statement is right?

A. Increases by approx. 50%
B. Remains unchanged
C. Decreases by approx. 50 %
D. Increases by approx. 30%
E. Deceases by approx. 40%

18. The average blood loss during the menstrual cycle is

A. 35-40 ml
B. 45-50 ml
C. 55-60 ml
D. 80-85 ml
E. 100-120 ml

19. What is the average life span of an RBC?

A. 5-9 days
B. 30 days
C. 60 days
D. 100 days
E. 120 days

20. Mrs.Twisha, A 16-year-old girl has not experienced menarche. Examination shows absence of breast development and small but otherwise normal female pelvic organs. Which of the following diagnostic tests is most useful in determining the etiology of the amenorrhea?

A. Serum follicle-stimulating hormone (FSH)
B. Serum estradiol
C. Serum testosterone
D. Magnetic resonance imaging (MRI) of the head
E. Ovarian biopsy

PHYSIOLOGY – MCQ

PHYSIOLOGY – MCQ

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