Nokea
Which of the following terms refers to the process by which antibodies coat the surface of pathogens, marking them for destruction by phagocytes or complement proteins?
- A. Opsonization
- B. Neutralization
- C. Agglutination
- D. Precipitation
Correct Answer: A
Rationale: Opsonization refers to the process by which antibodies bind to the surface of pathogens, marking them for destruction by phagocytes or complement proteins. This coating of antibodies enhances the ability of the immune system to recognize and eliminate the pathogens effectively. Phagocytes (such as macrophages and neutrophils) are better able to engulf and digest pathogens that have been opsonized, as the antibodies attached to the pathogen surface signal to the phagocytes that they are foreign invaders. This process is crucial in the body's immune response to infections and helps in clearing pathogens from the system.
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During a surgical procedure, the nurse observes excessive bleeding from the surgical site. What intervention should the nurse prioritize?
- A. Apply pressure to the bleeding site
- B. Administer intravenous fluids rapidly
- C. Notify the surgeon immediately
- D. Request blood products from the blood bank
Correct Answer: C
Rationale: Excessive bleeding during a surgical procedure is a critical situation that requires immediate attention. The surgeon should be notified promptly so that appropriate interventions can be initiated to control the bleeding, such as applying pressure, administering hemostatic agents, or performing additional surgical measures. The surgeon is ultimately responsible for addressing the source of bleeding and ensuring the patient's safety during the procedure. It is important for the nurse to communicate effectively and collaborate with the surgical team to manage the situation efficiently and effectively.
Choose an indicator that models personal and professional behavior and values.
- A. Utilizes communication and social media responsibly
- B. Attends conferences
- C. Enrolls in school
- D. Joins civic organization
Correct Answer: A
Rationale: Utilizing communication and social media responsibly is an indicator that models personal and professional behavior and values. Responsible use of communication and social media demonstrates a commitment to maintaining a positive online presence, interacting respectfully with others, and upholding professional standards in digital communication. This behavior reflects integrity, accountability, and respect for oneself and others, which are essential qualities in both personal and professional settings. Additionally, demonstrating responsible behavior in the digital sphere can help build trust, enhance reputation, and foster valuable relationships with colleagues, clients, and the community.
Baby Sharon was placed on phototherapy. What precaution should Nurses Juvy observe?
- A. Put sunglasses on the newborn to protect his/her eyes.
- B. Be certain that the newborn's intake is adequate.
- C. Assess the newborn for symptoms of headache.
- D. Keep the newborn wrapped to prevent sunburn.
Correct Answer: A
Rationale: When a baby is placed on phototherapy, especially for treating jaundice, it is crucial for the nurses to put sunglasses on the newborn to protect their eyes. Phototherapy involves exposing the baby's skin to certain types of light to help break down the bilirubin causing the jaundice. However, this light can be harmful to the baby's sensitive eyes, potentially leading to eye damage or other eye-related issues if not protected adequately. Therefore, placing sunglasses on the newborn is a necessary precaution to ensure the safety and well-being of the baby's eyes during the treatment.
A woman in active labor is diagnosed with a prolapsed umbilical cord. What is the priority nursing action?
- A. Elevate the mother's hips to relieve pressure on the cord.
- B. Prepare for immediate cesarean section.
- C. Administer intravenous fluids rapidly.
- D. Perform a vaginal examination to assess cervical dilation.
Correct Answer: B
Rationale: A prolapsed umbilical cord is a medical emergency during labor because it can cause compression of the umbilical cord, leading to decreased oxygen supply to the fetus. The priority nursing action in this situation is to prepare for an immediate cesarean section. This is necessary to quickly deliver the baby and relieve pressure on the cord, preventing potential fetal distress or death. Elevating the mother's hips may help reduce pressure on the cord temporarily, but it is not the definitive treatment for a prolapsed cord. Administering intravenous fluids rapidly may be necessary, but it is not the priority intervention when the fetus is at risk due to a prolapsed cord. Performing a vaginal examination to assess cervical dilation is contraindicated in the presence of a prolapsed umbilical cord as it can further compress the cord and worsen the situation.
Which of the following signs is indicative of shock in a trauma patient?
- A. Increased heart rate
- B. Hypertension
- C. Rapid capillary refill
- D. Hyperthermia
Correct Answer: C
Rationale: Rapid capillary refill is a sign indicative of shock in a trauma patient. Shock is a life-threatening condition where the body's organs and tissues do not receive adequate blood flow and oxygen, leading to cellular damage and eventual organ failure. In a trauma patient, rapid capillary refill suggests poor perfusion, which is a common feature of shock. The capillary refill time is an important clinical assessment that measures the time it takes for color to return to the nail bed after pressure is applied. In cases of shock, the refill time is faster than normal, indicating a systemic circulatory disturbance. Other signs of shock may include tachycardia (increased heart rate), hypotension (not hypertension), and hypothermia (not hyperthermia).