Nokea
Pubiotomy is
- A. Access to the lower uterine segment by dissection of tissues around the peritoneum
- B. A surgical procedure in which the cartilage of the pubic symphysis is divided
- C. Ligating of the pubic bones in case they are invaded by cancerous cells
- D. Dissection of the perineal tissues to hasten the perineal phase of labor
Correct Answer: B
Rationale: The correct answer is B: A surgical procedure in which the cartilage of the pubic symphysis is divided. Pubiotomy involves cutting the pubic symphysis cartilage to widen the pelvic outlet during difficult childbirth. This procedure helps facilitate labor by increasing the pelvic diameter. Choices A, C, and D are incorrect because they do not accurately describe pubiotomy. Choice A refers to accessing the lower uterine segment, choice C involves ligating pubic bones for cancer, and choice D pertains to perineal tissue dissection during labor, which are unrelated to pubiotomy.
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Effects of preeclampsia on the reproductive system include
- A. Development of infarcts and placental abruption
- B. Lowered vaginal discharge pH and haemorrhage
- C. Congestive cardiac failure and fetal hypoxia
- D. Poor placental anchorage and severe infarction
Correct Answer: D
Rationale: The correct answer is D because preeclampsia can lead to poor placental anchorage, which results in reduced blood flow to the placenta, leading to severe infarction. This can cause adverse effects on the fetus and the mother. Choice A is incorrect because infarcts and placental abruption are not specific effects of preeclampsia on the reproductive system. Choice B is incorrect because lowered vaginal discharge pH and hemorrhage are not typical effects of preeclampsia. Choice C is incorrect because congestive cardiac failure and fetal hypoxia are not direct effects of preeclampsia on the reproductive system.
A characteristic of monozygotic twins is that
- A. They are always of the same sex
- B. They share a similar fingerprint pattern
- C. They have different blood groups
- D. Superfetation is a common finding
Correct Answer: A
Rationale: The correct answer is A: They are always of the same sex. This is because monozygotic twins, also known as identical twins, develop from a single fertilized egg that splits into two embryos. As a result, they share the same genetic material and are always of the same sex.
Choice B is incorrect because fingerprint patterns are not determined by genetics and can vary even between identical twins. Choice C is incorrect because monozygotic twins share the same blood type since they have the same genetic makeup. Choice D is incorrect as superfetation, the occurrence of multiple pregnancies in the same uterus but from different ovulations, is extremely rare and not a common finding in monozygotic twins.
Hepatic encephalopathy is a clinical syndrome seen in patients with chronic liver disease its presentation may range from mild personality changes, to psychosis, to coma. The primary chemical mediators of hepatic encephalopathy include all of the following except
- A. Gamma-aminobutyric acid (GABA)
- B. Ammonia
- C. False neurotransmitters
- D. Serotonin
Correct Answer: B
Rationale: The correct answer is B: Ammonia. Ammonia is a primary chemical mediator of hepatic encephalopathy. In patients with chronic liver disease, the liver's ability to detoxify ammonia is compromised, leading to its accumulation in the bloodstream and subsequent neurotoxic effects causing encephalopathy. Gamma-aminobutyric acid (GABA), false neurotransmitters, and serotonin are all implicated in the pathophysiology of hepatic encephalopathy. GABA is involved in neurotransmission, false neurotransmitters are substances that disrupt normal neurotransmission, and serotonin levels are altered in hepatic encephalopathy.
Which one of the following features is indicative of an abnormal labour pattern?
- A. Presence of the retraction ring
- B. Presence of the Bandl’s ring
- C. Cervical canal short and thin
- D. Vagina is warm and moist
Correct Answer: B
Rationale: The correct answer is B: Presence of the Bandl's ring. This is indicative of an abnormal labor pattern as it may suggest a uterine rupture, which is a serious complication. Bandl's ring is a constriction ring formed between the upper and lower uterine segments due to excessive uterine contractions. It can lead to fetal distress and necessitate immediate medical intervention.
A: Presence of the retraction ring is a normal phenomenon during labor, marking the boundary between the lower and upper uterine segments.
C: Cervical canal short and thin can be a normal variation in labor and does not necessarily indicate an abnormal pattern.
D: Vagina being warm and moist is a common physiological response during labor and does not provide information on the progress or abnormality of labor.
In the preoperative assessment of a patient for the likelihood of postoperative risk, ascorbic acid deficiency, anemia, and volume contraction are all risk factors for
- A. Prolonged intubation
- B. Thromboembolism
- C. Delayed wound healing
- D. Atelectasis
Correct Answer: D
Rationale: Rationale for Correct Answer (D: Atelectasis):
1. Ascorbic acid deficiency can lead to impaired collagen synthesis, affecting lung tissue integrity.
2. Anemia reduces oxygen-carrying capacity, increasing the risk of lung collapse.
3. Volume contraction can lead to decreased lung compliance, predisposing to atelectasis.
Summary of Incorrect Choices:
A: Prolonged intubation is more related to airway issues, not specifically affected by the mentioned risk factors.
B: Thromboembolism is more linked to blood clotting issues rather than the mentioned risk factors.
C: Delayed wound healing is more influenced by nutritional deficiencies and blood flow, not directly linked to lung complications like atelectasis.