Nokea
What is the role of the placenta in pregnancy?
- A. Produces hormones
- B. Provides nutrients and oxygen to the fetus
- C. Removes waste products from the fetus
- D. All of the above
Correct Answer: D
Rationale: The correct answer is D because the placenta performs multiple crucial roles in pregnancy. Firstly, it produces hormones essential for maintaining the pregnancy. Secondly, it provides nutrients and oxygen to the fetus for growth and development. Lastly, it removes waste products from the fetus to ensure a healthy environment. Choices A, B, and C individually do not cover all the functions of the placenta, making them incorrect. Selecting option D acknowledges the comprehensive functions of the placenta during pregnancy.
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Which of the following is NOT a source of pain in labour?
- A. Uterine contractions
- B. Socio-cultural norms
- C. Cervical dilatation
- D. Pelvic floor stretching
Correct Answer: B
Rationale: Step 1: Uterine contractions are a physiological process in labor causing pain due to muscle contractions.
Step 2: Cervical dilatation involves the opening of the cervix, which can cause pain and discomfort.
Step 3: Pelvic floor stretching occurs as the baby moves through the birth canal, leading to pain.
Step 4: Socio-cultural norms do not directly cause physical pain in labor, making choice B the correct answer. Other choices directly relate to physical processes causing pain.
Based upon an understanding of the normal relationship between gastrin levels and acid secretion, the AGACNP recognizes that which of the following combinations is almost diagnostic of gastrinoma?
- A. Hypogastrinemia and acid hyposecretion
- B. Hypergastrinemia and acid hyposecretion
- C. Hypogastrinemia and acid hypersecretion
- D. Hypergastrinemia and acid hypersecretion
Correct Answer: A
Rationale: The correct answer is A: Hypogastrinemia and acid hyposecretion. Gastrinoma is a tumor that secretes excessive gastrin, leading to hypergastrinemia and increased acid secretion. However, due to a negative feedback mechanism, chronic exposure to high gastrin levels can cause downregulation of gastrin receptors on parietal cells, leading to decreased acid secretion. Therefore, in gastrinoma, despite high gastrin levels, acid secretion may be reduced due to this negative feedback loop. Choices B, C, and D are incorrect because they do not align with the expected relationship between gastrin levels and acid secretion in gastrinoma.
Congenital retraction of the prepuce, so that the glans is permanently exposed, is known as
- A. Phimosis
- B. Paraphimosis
- C. Hypospadias
- D. Hermaphroditism
Correct Answer: B
Rationale: Congenital retraction of the prepuce, leading to permanent glans exposure, describes paraphimosis. This condition occurs when the foreskin is pulled back and cannot return to its normal position, causing pain and swelling. Phimosis (A) is the inability to retract the foreskin over the glans. Hypospadias (C) is a urethral opening on the underside of the penis. Hermaphroditism (D) is a rare condition of having both male and female reproductive organs. Paraphimosis (B) is the specific term for the given scenario.
Mother-to-child transmission of TB organisms never occurs during labor.
- A. TRUE
- B. FALSE
- C. -
- D. -
Correct Answer: B
Rationale: Step 1: TB can be transmitted through respiratory droplets, not just during labor.
Step 2: Mother with active TB can transmit the bacteria to the child during childbirth.
Step 3: Therefore, the statement that mother-to-child transmission never occurs during labor is false.
Summary: Choice B is correct because TB transmission can occur during labor, making Choice A incorrect. Choices C and D are irrelevant.
Neonatal injury to nerve roots C8 & T1 causes one of the following
- A. Klumpke’s palsy
- B. Erb’s palsy
- C. Phrenic injury
- D. Radial palsy
Correct Answer: A
Rationale: Neonatal injury to nerve roots C8 & T1 leads to Klumpke's palsy due to damage to the lower brachial plexus. This results in weakness of the hand and forearm muscles. Erb's palsy is from injury to C5-C6 roots causing upper brachial plexus damage. Phrenic injury affects the diaphragm due to C3-C5 roots. Radial palsy involves the radial nerve, typically from injury at the spiral groove of the humerus. Therefore, the correct answer is A as it directly correlates with the specific nerve roots affected in Klumpke's palsy.