2.2 Block Exam Set 22211
B. Cephalopelvic disproportion is impossible to accurately predict due to many factors that are impossible to quantify/measure such as how much the head of the baby can compress, how flexible the ligaments of the mother will be, etc. The question specifically asks what factors can "predict". So, the answer may be pelvimetry for this question.
C. At first, none of the options may seem like the correct answer, but note the question asks specifically what is used during labor. Analgesic drugs are the only option on that list that is not used during labor. They're usually given before and after labor.
A. From the options given, it is obvious the lady is in active stage. The active stage has cervical dilation of 4-7 cm. The question is asking what the least amount of cervical dilation is. In this case, it is 4 cm.
This is the same as question #9 in Block Exam Set 22111. The official answer key for that exam says the answer is "macrosomia".
See Also: Contraindications to Vacuum Extraction on Medscape.
D. Maternal mortality rate is calculated with a denominator of 100,000. You can check Indonesia's maternal mortality rate for yourself on World Bank's website. The answer paper confuses rate and ratio. They are the same thing. You can see on the CIA's website and they use the term, "Maternal mortality rate: 126 deaths/100,000 live births (2015 est.)"
If the answer was B, 1000 live births, that would mean that a quarter of all Indonesians would have no mothers since birth. (Does that look like it's true in your batch? No. The answer is D.)