Correct Answer: A

Rationale: Assessing feeding patterns is the priority during a home visit for a family with a new baby because it is crucial for the health and growth of the newborn. By evaluating the feeding patterns, the nurse can ensure that the baby is receiving adequate nutrition and address any feeding issues promptly. While sleeping arrangements, support system, and immunization status are important aspects to assess during a home visit, they are not as critical as ensuring the newborn's nutritional needs are being met.

Correct Answer: D

Rationale: The case fatality ratio is calculated as (deaths/cases) * 100. In this case, there were 2 deaths out of 8 cases. Therefore, the calculation is (2/8) * 100 = 25%. Choices A, B, and C are incorrect as they do not match the correct calculation.

Correct Answer: B

Rationale: After a water deprivation test in a client suspected of having diabetes insipidus, the nurse would expect the urine specific gravity to remain unchanged. This occurs because in diabetes insipidus, the kidneys are unable to concentrate urine, leading to a low urine specific gravity even after water deprivation. Choices A, C, and D are incorrect. Increased edema and weight gain are not typical findings in diabetes insipidus. Rapid protein excretion is not directly related to the condition, and decreased blood potassium is not a common outcome of a water deprivation test for diabetes insipidus.

Correct Answer: A

Rationale: The correct answer is A. A patient with known COPD and difficulty breathing after physical exertion like climbing stairs requires immediate assessment by the nurse. This could indicate a potential exacerbation of COPD, which needs prompt intervention to prevent respiratory distress. Choices B, C, and D describe important patient situations that also require attention, but the urgency is higher with a COPD patient experiencing difficulty breathing.

Correct Answer: A

Rationale: The term 'vital statistics' specifically refers to the systematic study of vital events, including births, illnesses, marriages, divorces, separations, and deaths. This field focuses on quantifying and analyzing these essential life events within a population. Choices B, C, and D are incorrect because while they may be related to data collection and analysis, they do not encompass the broad spectrum of vital events covered under the term 'vital statistics.' Morbidity refers to the prevalence of a specific illness or disease within a population, statistics is a more general term for numerical data analysis, and mortality specifically pertains to deaths within a population.