Correct Answer: B

Rationale: The correct answer is B. Radiating pain, especially to the left arm, is a classic sign of myocardial infarction. Pain that radiates to the left arm indicates cardiac involvement, making it a significant finding. Choices A, C, and D are incorrect because chest pain that improves with rest, worsens with deep breathing, or is relieved by antacids is less likely to be associated with a myocardial infarction.

Correct Answer: B

Rationale: Performing fundal massage is the priority action to take in this situation. Fundal massage helps stimulate uterine contractions, which can reduce postpartum bleeding. Uterine atony, the most common cause of early postpartum hemorrhage, can be addressed effectively through fundal massage. Administering oxytocin IV, although important, should come after initiating fundal massage. Checking vital signs is also crucial but not the immediate priority. Encouraging the client to void does not directly address the heavy bleeding and passing of large clots; hence, it is not the priority action.

Correct Answer: B

Rationale: The correct answer is B: Oliguria. Oliguria (low urine output) is a sign of decreased cardiac output because the kidneys are not receiving enough blood to produce an adequate amount of urine. Shivering (choice A) is a response to hypothermia or the body's attempt to generate heat. Bradypnea (choice C) refers to abnormally slow breathing rate and is not directly related to cardiac output. Constricted pupils (choice D) are more indicative of conditions affecting the nervous system or medications.

Correct Answer: A

Rationale: Web-based applications are the most effective strategy for reaching young adults in the target group regarding safe sexual practices. Young adults today are highly engaged with mobile technology and the internet, making web-based applications the most accessible and convenient method to disseminate information. Print-based media like newspapers may not have the same reach and engagement among young adults. Television advertisements might reach a broader audience, but they may not be as targeted to the specific demographic of young adults. Brochures in kiosks in malls are less likely to reach a large number of young adults compared to web-based applications, which can be accessed anytime and anywhere through mobile devices.

Correct Answer: A

Rationale: Tingling in the fingers and around the mouth is a sign of hypocalcemia, which can occur after thyroid surgery due to accidental damage to the parathyroid glands. Hypocalcemia is common after thyroidectomy due to potential parathyroid damage. Calcium gluconate is the appropriate intervention to treat hypocalcemia. Providing a high-protein diet or administering levothyroxine are not indicated for hypocalcemia. Applying a warm compress to the client's neck would not address the underlying issue of hypocalcemia.