Nokea
The MAIN function of surfactant factor is to
- A. Prevent alveoli of the lungs from collapsing
- B. Initiate breathing of the neonate at birth
- C. Enhance maturity of respiratory centre in the brain
- D. Regulate breathing immediately the baby is born
Correct Answer: A
Rationale: The correct answer is A: Prevent alveoli of the lungs from collapsing. Surfactant reduces surface tension in the alveoli, preventing them from collapsing during exhalation and maintaining lung compliance. B, C, and D are incorrect because surfactant primarily affects lung mechanics, not the initiation of breathing, maturity of the respiratory center, or immediate regulation of breathing upon birth.
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Which one of the following fetal positions is associated with intense back pain during labor?
- A. Occipito-anterior
- B. Transverse position
- C. Occipito-posterior
- D. Occipito-lateral
Correct Answer: C
Rationale: The correct answer is C: Occipito-posterior. This position occurs when the baby's head is facing forward but towards the mother's spine. This position can cause intense back pain during labor because the baby's head puts pressure on the mother's lower back. Occipito-anterior (A) is the most common and ideal position for labor. Transverse position (B) is when the baby is lying sideways, which may cause prolonged labor but not necessarily intense back pain. Occipito-lateral (D) is a less common position where the baby's head is facing sideways, which may not specifically cause intense back pain.
Pneumatosis, or gas cysts, may form in the wall anywhere along the gastrointestinal tract in some cases, they will produce symptoms such as abdominal discomfort, diarrhea with mucus, and excess flatulence. Treatment of pneumatosis most often involves
- A. Several days of oxygen by face mask
- B. Hyperbaric oxygen
- C. Surgical resection
- D. Treatment of underlying disease
Correct Answer: B
Rationale: The correct answer is B: Hyperbaric oxygen. Hyperbaric oxygen therapy is the most effective treatment for pneumatosis as it helps to reduce gas cysts by increasing oxygen levels in the tissues. This promotes healing and resolution of the condition.
A: Several days of oxygen by face mask - Regular oxygen therapy is not as effective as hyperbaric oxygen in treating pneumatosis.
C: Surgical resection - Surgical resection is not typically the first-line treatment for pneumatosis and is usually reserved for severe cases or complications.
D: Treatment of underlying disease - While treating the underlying disease is important, it may not directly address the gas cysts in the gastrointestinal tract. Hyperbaric oxygen therapy targets the gas cysts specifically.
How can a healthcare provider support a woman with hyperemesis gravidarum?
- A. Prescribe anti-nausea medication
- B. Recommend bed rest
- C. Suggest a high-protein diet
- D. Advise on exercise
Correct Answer: A
Rationale: The correct answer is A: Prescribe anti-nausea medication. This is the most appropriate choice to manage hyperemesis gravidarum, a severe form of morning sickness. Anti-nausea medication can help alleviate symptoms and prevent dehydration. Choice B (Recommend bed rest) may not directly address the nausea and vomiting associated with hyperemesis gravidarum. Choice C (Suggest a high-protein diet) and D (Advise on exercise) may not be effective in managing the condition or providing immediate relief from symptoms. Anti-nausea medication is the most evidence-based approach to support a woman with hyperemesis gravidarum.
Incidental antepartum haemorrhage is also referred to as
- A. Intraplacental haemorrhage
- B. Intrapartum haemorrhage
- C. Extraplacental haemorrhage
- D. Preterm haemorrhage
Correct Answer: C
Rationale: The correct answer is C: Extraplacental haemorrhage. Incidental antepartum haemorrhage refers to bleeding from a source other than the placenta, such as the cervix or vagina, before delivery. Intraplacental haemorrhage (choice A) refers to bleeding within the placenta itself, not outside it. Intrapartum haemorrhage (choice B) occurs during labor and delivery, not before. Preterm haemorrhage (choice D) is not a specific term used to describe antepartum bleeding. Therefore, the correct term for antepartum bleeding from a non-placental source is extraplacental haemorrhage.
In which form of hypospadias should circumcision be deferred in order to preserve the prepuce for later surgical repair?
- A. Ventral displacement
- B. Proximal displacement
- C. Midscrotal hypospadias
- D. Meatus proximal to the corona
Correct Answer: A
Rationale: In ventral displacement hypospadias, circumcision should be deferred to preserve prepuce for later surgical repair as the prepuce is needed for reconstruction. The prepuce can be used as a tissue graft to correct the hypospadias. In proximal displacement, the urethral opening is closer to the scrotum, making prepuce preservation less critical. Midscrotal hypospadias and meatus proximal to the corona do not typically involve prepuce preservation for surgical repair.