Correct Answer: D

Rationale: The most likely cause of the sudden onset of severe abdominal pain and dark red vaginal bleeding with a tender, firm uterus at 28 weeks gestation is abruptio placentae. Abruptio placentae, also known as placental abruption, is the premature separation of the placenta from the uterine wall before delivery. This condition can be life-threatening to both the mother and the fetus, as it can lead to severe bleeding and compromise the oxygen and nutrients supply to the fetus. The presentation typically includes severe abdominal pain, dark red or maroon vaginal bleeding, uterine tenderness, and a firm uterus due to the blood accumulation behind the placenta. Prompt recognition and intervention are crucial to prevent adverse maternal and fetal outcomes.

Correct Answer: C

Rationale: When controlling severe external bleeding from an extremity, the recommended action is to apply direct pressure with a sterile dressing. Direct pressure helps to stop the bleeding by promoting clot formation and reducing blood flow from the wound. This method is effective in most cases and should be the first response to control bleeding. Elevating the extremity above the level of the heart can be helpful in some cases, but direct pressure is the initial recommended action. Applying a tourniquet proximal to the injury site should only be done as a last resort when other methods are not successful, as it can lead to complications such as tissue damage. Removing any impaled objects can actually worsen the bleeding and should be avoided unless necessary for immediate life-saving measures.

Correct Answer: B

Rationale: The nurse's best approach to address the patient's fear of needles before a blood draw is to provide the patient with information about relaxation techniques and distraction methods (Option B). Dismissing the patient's fear (Option A), ignoring the fear and proceeding quickly (Option C), or telling the patient that the fear is irrational and unfounded (Option D) would not be helpful and could potentially escalate the patient's anxiety. Providing information on relaxation techniques such as deep breathing or visualization, as well as distraction methods like listening to music or engaging in conversation, can help the patient feel more comfortable and reduce their fear and anxiety during the blood draw procedure. It is important for the nurse to acknowledge and address the patient's concerns in a supportive and empathetic manner to build trust and ensure a successful blood draw experience.

Correct Answer: C

Rationale: The best way for Myra to collect data from these participants is through a survey or questionnaire. Surveys and questionnaires are structured instruments that allow for the systematic collection of data from a large number of participants efficiently. They can be easily distributed and completed by participants, making them a convenient method for gathering information. Surveys and questionnaires also provide a standardized approach to data collection, ensuring consistency in the responses obtained. Additionally, they can be designed to include both closed-ended and open-ended questions, allowing for a comprehensive understanding of the participants' perspectives and experiences. Overall, using a survey or questionnaire would enable Myra to collect data from the participants in a systematic and efficient manner.

Correct Answer: B

Rationale: Convenience sampling involves selecting participants who are readily available or easy to access. In this scenario, choosing to interview nurses who happen to be in the conference room where the activity is scheduled falls under convenience sampling as they are easily accessible at that moment. While convenience sampling may be convenient, it may introduce bias and may not represent the entire population accurately.