Correct Answer: C

Rationale: A boggy uterus located 2 cm above the umbilicus suggests uterine atony, which is a common cause of postpartum hemorrhage. The initial intervention in this situation is to massage the fundus. Fundal massage helps the uterus contract, promoting hemostasis and preventing excessive bleeding. Taking vital signs or assessing lochia are important actions but are secondary to addressing uterine atony. Administering oxytocin IV bolus is often done after fundal massage to further enhance uterine contractions.

Correct Answer: D

Rationale: Chlorine bleach is the most appropriate agent for disinfecting surfaces contaminated with blood. It is effective in killing a wide range of pathogens, including viruses. Hydrogen peroxide (Choice A) is not as effective as chlorine bleach for bloodborne pathogen disinfection. Chlorhexidine (Choice B) and isopropyl alcohol (Choice C) are more commonly used for skin antisepsis rather than surface disinfection, making them less suitable options in this scenario.

Correct Answer: A

Rationale: Using Naegele's rule, to calculate the expected delivery date, you add one year, subtract three months, and add seven days to the first day of the last menstrual period. If the last menstrual period was in October, adding one year gives October of the following year. Subtracting three months gives July, and adding seven days gives the expected delivery date of July 11th. Therefore, the correct answer is 711. Choice B (1011) is incorrect as it doesn't follow Naegele's rule calculations. Choices C (411) and D (1211) are also incorrect as they do not align with the correct application of Naegele's rule.

Correct Answer: B

Rationale: The correct answer is B because numb fingers indicate neurovascular compromise, which can lead to serious complications if not addressed promptly. The priority in this situation is to assess and address any circulation issues affecting the extremity. Choices A, C, and D are of concern but not as immediate as neurovascular compromise, which requires urgent attention to prevent further complications.

Correct Answer: A

Rationale: The correct answer is A: Pain radiating to the left arm. This is a classic symptom of myocardial infarction and indicates possible heart involvement. Reporting this finding to the provider is crucial for prompt evaluation and intervention. Choices B, C, and D are incorrect. Pain relieved by rest, pain worsened with breathing, and pain relieved by antacids are not typical symptoms of myocardial infarction. These findings do not raise the same level of concern as pain radiating to the left arm and are less indicative of cardiac involvement.