Correct Answer: A

Rationale: The correct answer is A because infants typically triple their birth weight by 1 year of age due to rapid growth and development. This information is crucial for understanding normal growth patterns in infants. Choice B is incorrect as picky eating behavior is common in toddlers but not a universal characteristic. Choice C is incorrect as school-age children can consume hot dogs and grapes safely as long as they are cut into appropriate sizes to prevent choking hazards. Choice D is incorrect as breastfeeding women actually need an additional 450-500 kcal/day, not 750 kcal/day.

Correct Answer: D

Rationale: The correct answer is D: Previous perforation of the eardrum. A perforated eardrum can lead to hearing loss as it affects the transmission of sound waves to the inner ear. This is the most likely link to the patient's hearing deficit as trauma or injury to the eardrum can directly impact hearing. Incorrect choices: A: Recent completion of radiation therapy for treatment of thyroid cancer - Radiation therapy for thyroid cancer typically does not directly affect hearing. B: Routine use of quinine for management of leg cramps - Quinine use is associated with tinnitus (ringing in the ears) but not typically with hearing loss. C: Allergy to hair coloring and hair spray - Allergy to hair products is not directly related to hearing loss. In summary, the most likely cause of the patient's hearing deficit based on the health history provided is the previous perforation of the eardrum, as it directly affects the transmission of sound waves to the inner ear.

Correct Answer: A

Rationale: The correct answer is A because an ultrasound-guided core biopsy is indeed faster, less expensive, and does not use radiation. - "Faster": Ultrasound-guided biopsies are typically quicker compared to stereotactic biopsies, as they are performed in real-time using ultrasound imaging. - "Less expensive": Ultrasound-guided biopsies are generally more cost-effective than stereotactic biopsies due to the equipment and resources required. - "Does not use radiation": Unlike stereotactic biopsies which involve the use of X-rays for guidance, ultrasound-guided biopsies do not expose the patient to radiation, making them safer in that aspect. The other choices are incorrect because they either inaccurately state that ultrasound-guided biopsies use radiation (C), take more time (D), or imply a slight increase in cost without highlighting the key advantages of speed and lack of radiation (B).

Correct Answer: D

Rationale: The correct answer is D: Reduce disparities. In equity-focused quality improvement, the primary goal is to address and reduce disparities in healthcare outcomes and access. By focusing on reducing disparities, the hospital ensures that all patients receive equitable care regardless of their background. Documenting staff satisfaction (A) is important but not directly related to equity-focused improvement. Focusing on the family (B) is essential for patient-centered care but doesn't specifically address equity. Implementing change on a grand scale (C) may not necessarily target disparities directly. Therefore, reducing disparities aligns best with equity-focused quality improvement principles.

Correct Answer: B

Rationale: The correct answer is B because an incomplete abortion at 16 weeks may require a D&C to remove remaining tissue to prevent infection and complications. Incomplete abortion means not all fetal tissue has been expelled, posing a risk. Choice A (complete abortion at 8 weeks) does not require a D&C as all tissue is expelled. Choice C (threatened abortion at 6 weeks) does not necessitate immediate intervention. Choice D (incomplete abortion at 10 weeks) is not the best choice as the risk of complications increases with gestational age.