Correct Answer: A

Rationale: The correct answer is A: Continue the current regimen. Spironolactone is a potassium-sparing diuretic commonly used to treat ascites. The weight loss of 0.75 kg/day indicates that the current regimen is effective. Continuing the regimen is appropriate to avoid electrolyte imbalances. Discontinuing spironolactone (Choice B) can lead to rebound edema. Adding a loop diuretic (Choice C) may increase the risk of electrolyte disturbances. Large-volume paracentesis (Choice D) is reserved for cases of refractory ascites.

Correct Answer: C

Rationale: The correct answer is C: Homeopathy. Homeopathy involves using highly diluted substances to stimulate the body's natural healing processes. In labor, homeopathy can help manage pain and support relaxation. Entonox (A) and Diamorphine (D) are pharmacological measures, while Cyclothane (B) is not a recognized pain relief option in labor. Homeopathy aligns with non-pharmacological approaches, making it the most suitable choice for pain relief in labor.

Correct Answer: A

Rationale: The correct answer is A because occipito-posterior position can lead to prolonged labor due to poor fetal positioning, causing maternal back pain. This can result in fetal distress as the baby may have difficulty descending through the birth canal. Postpartum hemorrhage, uterine rupture, fetal death (choices B and C) are not typically associated with occipito-posterior position. Therefore, choice A is the most appropriate answer.

Correct Answer: A

Rationale: The presenting diameter in brow presentation is the submentobregmatic diameter. This is because in brow presentation, the fetal head is partially extended, causing the forehead (bregma) to be the presenting part. The submentobregmatic diameter is the distance between the chin (mentum) and the highest point of the forehead (bregma). This diameter is crucial for successful delivery in brow presentation as it is the smallest diameter that must pass through the maternal pelvis. Summary of other choices: B: Suboccipitofrontal - This diameter is not relevant in brow presentation as it involves the back of the head. C: Occipitalfrontal - This diameter is the distance between the back of the head and the forehead, also not relevant in brow presentation. D: Mentovertical - This diameter is the distance between the chin and the vertex of the head, not the forehead.

Correct Answer: D

Rationale: The correct answer is D: Obturator sign. This finding indicates irritation of the peritoneum and is associated with a ruptured appendix, not acute pancreatitis. A: Severe epigastric pain with radiation to the back is a common presentation of acute pancreatitis, but not necessarily indicative of a seriously ill patient. B: Abdominal guarding and rigidity may suggest peritonitis but are not specific to acute pancreatitis. C: Grey Turner sign, bruising of the flanks, is associated with severe pancreatitis but does not necessarily indicate a seriously ill patient.