An infection in a central venous access device is not eliminated by giving antibiotics through the catheter. How might bacterial glycocalyx contribute to this?

Correct Answer: A

Rationale: Bacterial glycocalyx is a viscous polysaccharide or polypeptide slime that covers microbes. It plays a significant role in protecting bacteria by enhancing adherence to surfaces, resisting phagocytic engulfment by white blood cells, and preventing antibiotics from contacting the microbe. Choice A is correct because glycocalyx shields the bacteria from both antibiotics and the immune system, allowing the infection to persist. Choices B, C, and D are incorrect because glycocalyx does not neutralize antibiotics, compete for binding sites with antibiotics, or provide nutrients for microbial growth.

Correct Answer: D

Rationale: In a child with Down Syndrome presenting with muscle weakness and diminished reflexes, an atlanto-axial dislocation is a concern. The priority action is to position the child's neck in a neutral c-spine posture to prevent further injury. This should be done before any movement or manipulation. Contacting the physician should follow to ensure appropriate evaluation and management. Initiating an IV is not indicated unless specifically ordered for a medical reason. Ordering an X-ray for a c-spine work-up should not be the first action as it may involve movement that could exacerbate the condition if an injury is present.

Correct Answer: A

Rationale: The patient is likely experiencing thrush, a fungal infection, which can present as white patches on the breast that persist. Nystatin is an antifungal medication commonly used to treat thrush. Therefore, the correct answer is Nystatin. Atropine is not indicated for this condition and is used for different purposes. Amoxil is an antibiotic and would not be effective against a fungal infection like thrush. Lortab is a pain medication and is not appropriate for treating thrush.

Correct Answer: C

Rationale: Monitoring Jackie's cardiac status is of the highest priority in a patient with rheumatic fever. Rheumatic fever can lead to permanent cardiac damage, making it crucial to closely monitor the heart. Assessing for signs of carditis, such as murmurs or other cardiac symptoms, is essential. The second priority is evaluating joint symptoms for the presence of polyarthritis and pain, which are common manifestations of rheumatic fever. While assessing Jackie's response to hospitalization is important for her emotional well-being, it is not the highest priority. The presence of a macular rash, although relevant, is not as high a priority as monitoring cardiac status or assessing joint symptoms.

Correct Answer: C

Rationale: The correct answer is C. Patient confidentiality must be maintained at all times to respect the patient's privacy and dignity. Disclosing sensitive information like a patient's prognosis in a public setting violates confidentiality and can cause distress. The nurse should intervene in this situation and educate the nursing student about the importance of not discussing confidential patient information in public. Choices A, B, and D do not involve breaching patient confidentiality and do not require immediate nurse intervention. Choice A focuses on infection control measures, choice B relates to clinical assessment, and choice D is about the doctor's rounds, which are not urgent matters requiring immediate intervention.