Final answer:
The combination of RUQ pain with right shoulder or subscapular radiation, Murphy's sign, and possible jaundice is suggestive of cholecystitis (Option A).
Step-by-step explanation:
The combination of RUQ pain with right shoulder or subscapular radiation, Murphy's sign, and possible jaundice points to the diagnosis of cholecystitis (Option A).
Cholecystitis is inflammation of the gallbladder, which is commonly caused by gallstones blocking the cystic duct. When this occurs, it can lead to the characteristic RUQ pain, right shoulder or subscapular radiation, and positive Murphy's sign (pain on inspiration when palpating the gallbladder).
Jaundice may also be present in cholecystitis due to the obstruction of the bile duct by the gallstones. However, jaundice is generally not a common feature of cholecystitis, so this symptom alone is not enough to definitively diagnose the condition. Other possible symptoms of cholecystitis include fever, nausea, and vomiting.