Correct Answer: A

Rationale: The correct answer is A: S3 ventricular gallop. An S3 sound is a common finding in congestive heart failure due to fluid overload in the heart. It is associated with decreased ventricular compliance. Choices B, C, and D are incorrect. An apical click is not typically associated with congestive heart failure. A systolic murmur may be heard in conditions like mitral regurgitation but is not specific to congestive heart failure. A split S2 is associated with conditions like pulmonary hypertension, not congestive heart failure.

Correct Answer: C

Rationale: When evaluating the therapeutic effectiveness of digoxin in a client with heart failure, the nurse should expect to find improved respiratory status and increased urinary output. Digoxin helps improve cardiac output and reduces fluid accumulation, leading to improved breathing and increased urinary output. Choices A, B, and D are incorrect because diaphoresis with decreased urinary output, increased heart rate with increased respirations, and decreased chest pain with decreased blood pressure are not indicative of the therapeutic effectiveness of digoxin in heart failure management.

Correct Answer: B

Rationale: The correct answer is B. Pale mucosa of the eyelids and lips is a classic sign of anemia in infants, indicating a lack of sufficient red blood cells. This finding is due to decreased hemoglobin levels, which causes reduced oxygen delivery to tissues. Choices A, C, and D are less specific to anemia in infants. While a hemoglobin level of 12 g/dL may be within the normal range for a 10-month-old infant, the presence of pale mucosa is a more indicative sign of anemia.

Correct Answer: A

Rationale: The correct answer is A because wearing a mask in public can help prevent the spread of TB to others. Choice B is incorrect as taking medication as prescribed helps in treating the infection within the individual but does not directly prevent spreading it to others. Choice C is important for respiratory hygiene but may not be sufficient to prevent transmission. Choice D, isolation until treatment is complete, is crucial for preventing the spread but is not specifically about understanding transmission.

Correct Answer: C

Rationale: The correct answer is C. Eating crackers before getting out of bed can help manage nausea associated with hyperemesis gravidarum. Choice A is incorrect because drinking water with meals may exacerbate nausea. Choice B is incorrect as eating every 6 hours may not be frequent enough to combat nausea and vomiting. Choice D is incorrect because protein intake should not be limited during pregnancy, especially in cases of hyperemesis gravidarum.