A patient with a severe viral infection exhibits reduced levels of circulating lymphocytes. Which of the following mechanisms is most likely responsible for this observation?

Correct Answer: A

Rationale: A patient with a severe viral infection exhibiting reduced levels of circulating lymphocytes is likely due to the apoptosis of infected lymphocytes. When a virus enters the body, it can infect and replicate within lymphocytes, subsequently triggering the immune system to induce apoptosis in infected cells to prevent further spread of the virus. This process is part of the body's defense mechanism to control the viral infection. As a result, the circulating lymphocyte levels may decrease as infected lymphocytes are targeted for apoptosis. This phenomenon helps to limit viral replication and spread within the body, thereby aiding in the immune response to eliminate the virus.

Correct Answer: C

Rationale: The best strategy to control the incidence of rabies in the community is to promote responsible pet ownership. Responsible pet owners ensure that their pets are vaccinated against rabies, kept on a leash or within a confined area, and are not allowed to roam freely. By doing so, the chances of their pets contracting and spreading rabies are greatly reduced. This approach focuses on prevention rather than reactive measures such as impounding or killing dogs, which may not effectively tackle the root cause of the problem. Additionally, fining the owner may serve as a deterrent, but it does not address the overall issue of preventing rabies transmission. Encouraging responsible pet ownership is a sustainable and humane way to reduce the incidence of rabies in the community.

Correct Answer: A

Rationale: The presentation described is consistent with anterior uveitis. Anterior uveitis involves inflammation of the iris and ciliary body. Patients typically present with symptoms such as redness, pain, photophobia, and blurred vision. The slit-lamp examination findings of ciliary injection (redness and dilation of blood vessels in the iris and ciliary body), corneal edema, and a mid-dilated pupil with a fixed reaction to light (due to ciliary muscle spasm causing decreased accommodation) are characteristic of anterior uveitis. This condition is often idiopathic but can be associated with various systemic diseases like ankylosing spondylitis, inflammatory bowel disease, and other autoimmune disorders. Treatment involves addressing the inflammation with topical corticosteroids and, in some cases, cycloplegic agents to reduce pain and inflammation.

Correct Answer: C

Rationale: It is essential for the nurse to document important observations made during a tracheostomy procedure, and this includes the amount, color, and consistency of sputum as well as the appearance of the incision. Monitoring these factors helps assess the patient's respiratory status, risk of infection, and wound healing progress. Ensuring detailed documentation in this area allows for timely intervention if there are any concerning changes observed post-procedure. Observations such as the response of the patient, vital signs during the procedure, and patient behavior are also important but may be documented separately from the specific details related to sputum, incision appearance, and wound care.

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.

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.

Correct Answer: B

Rationale: Normal saline is the preferred solution for wound irrigation because it is isotonic and will not damage healthy tissue or delay wound healing. It helps to remove debris and pathogens from the wound, promoting a clean environment for healing. Sterile water can be used if normal saline is not available, but it may cause cellular damage if used in large volumes. Hydrogen peroxide and Betadine solution are not recommended for wound irrigation as they can be cytotoxic to the tissues and interfere with the wound healing process. It's important for the nurse to use evidence-based practice and follow recommended guidelines to promote optimal wound healing outcomes.

Correct Answer: B

Rationale: The nurse can assure Sandy that her new joint will function almost as well as a normal joint if she performs her exercises faithfully because post-joint replacement surgery recovery often involves physical therapy and exercises aimed at restoring strength and mobility to the affected joint. By following the recommended exercise regimen and post-operative care instructions, Sandy can improve the function of her new joint and achieve a good level of mobility and functionality, similar to that of a normal joint. It is important for Sandy to be diligent and committed to her rehabilitation process to maximize the benefits of the joint replacement surgery.

Correct Answer: A

Rationale: The presentation of painless, progressive visual field loss, especially in the peripheral vision, along with an open iridocorneal angle is characteristic of open-angle glaucoma. Open-angle glaucoma is a type of glaucoma where there is no physical obstruction to the outflow of aqueous humor from the eye, but there is gradual damage to the optic nerve over time. The gradual loss of peripheral vision is a common early symptom of open-angle glaucoma. It is essential to diagnose and manage open-angle glaucoma promptly to prevent irreversible vision loss.