Nokea
What action does the copper used in Copper T have?
- A. Blastocidal
- B. Bacteriostatic
- C. Bacteriocidal
- D. Spermicidal
Correct Answer: D
Rationale: The correct answer is D, Spermicidal. The copper in Copper T exerts its action by affecting sperm viability and motility, thus preventing fertilization. Choices A, B, and C are incorrect because Copper T primarily works by preventing sperm from reaching and fertilizing the egg, rather than acting on blastocysts, bacteria, or bacteriocins.
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What is the estimated percentage of deaths due to unsafe abortions from 591 maternal deaths per 100,000 live births?
- A. 0.1
- B. 0.2
- C. 0.3
- D. 0.4
Correct Answer: D
Rationale: To calculate the estimated percentage of deaths due to unsafe abortions, you divide the number of deaths due to unsafe abortions by the total number of maternal deaths and then multiply by 100 to get the percentage. In this case, with 591 maternal deaths and 40% estimated to be due to unsafe abortions, the calculation is (591 * 0.4) / 100, which equals 2.36. Therefore, the estimated percentage of deaths due to unsafe abortions from 591 maternal deaths per 100,000 live births is 0.4 or 40%. Choices A, B, and C are incorrect percentages that do not reflect the provided information.
Discuss the anatomical/physiological changes in pregnancy under the following: Haematological system
- A. Blood volume and plasma volume increase, red blood cells increase, erythropoietin levels decrease, and leukocyte count increases.
- B. Blood volume and plasma volume decrease, and red blood cells decrease.
- C. No changes occur in the haematological system during pregnancy.
- D. Platelet count remains constant, and no change in coagulation factors.
Correct Answer: A
Rationale: During pregnancy, the haematological system undergoes changes to support the growing fetus. Blood volume and plasma volume increase to accommodate the needs of the developing baby. Red blood cells increase to support the increased oxygen demand. Contrary to the statement, erythropoietin levels actually increase to stimulate red blood cell production. Additionally, leukocyte count increases to help the mother's immune system cope with the changes during pregnancy. Choice B is incorrect as it describes a decrease in blood components, which is not the case in pregnancy. Choice C is incorrect as there are significant changes in the haematological system during pregnancy. Choice D is incorrect as platelet count can fluctuate during pregnancy, and there are changes in coagulation factors to prevent excessive bleeding.
Where does the ovum receive the sperm?
- A. Animal pole
- B. Vegetal pole
- C. Zona pellucida
- D. None of the above
Correct Answer: C
Rationale: The correct answer is C, 'Zona pellucida.' The ovum receives the sperm at the zona pellucida, which is the glycoprotein layer surrounding the plasma membrane of the oocyte. This layer plays a crucial role in preventing polyspermy. Choices A and B, 'Animal pole' and 'Vegetal pole,' are incorrect as they refer to different regions of the egg and are not where the sperm fertilizes the ovum. Choice D, 'None of the above,' is incorrect as the sperm indeed interacts with the zona pellucida during fertilization.
What structure lies posterior to the vagina?
- A. Pouch of Douglas
- B. Rectum
- C. Perineal body
- D. Structures of the vulva
Correct Answer: B
Rationale: The correct answer is B: Rectum. The rectum is located posterior to the vagina in the pelvic cavity. The Pouch of Douglas (choice A) is a peritoneal pouch located between the rectum and the uterus. The perineal body (choice C) is a fibrous structure located between the vagina and the anus. Structures of the vulva (choice D) are external genital structures surrounding the vaginal opening, not posterior to the vagina.
When does missed abortion occur?
- A. The fetus dies and is retained in utero with the placenta and membranes.
- B. All products of conception are expelled with minimal bleeding.
- C. The cervix remains closed, and the products of conception remain in the uterus.
- D. The cervix remains closed, but there is heavy bleeding.
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.