A nurse is obtaining vital signs from a 2-month-old infant. The infant's heart rate is 190/min and his temperature is 40° C (104° F). The father asks the nurse why the infant's heart is beating so fast. Which of the following responses by the nurse is appropriate?

A.Factor X is a clotting factor involved in the coagulation cascade. It is not directly related to preventing infections. While clotting factors are essential for hemostasis, they do not play a role in infection prevention.

B. Steroids can suppress the immune response, making the child more susceptible to infections. Therefore, they are not specifically administered to prevent infections

C. In a child with a sickle cell crisis who is hospitalized, preventing infections is crucial due to the increased risk of infections in this condition. Administering immunizations that the patient is scheduled for can help prevent certain infections.

Children with sickle cell disease are at a higher risk of bacterial infections, especially from encapsulated organisms like Streptococcus pneumoniae and Haemophilus influenzae. Vaccines can help protect against these pathogens and reduce the risk of serious infections.

Some of the recommended immunizations for children with sickle cell disease include:

Pneumococcal vaccine: This helps protect against infections caused by Streptococcus pneumoniae, which can cause severe respiratory and bloodstream infections.

Haemophilus influenzae type B (Hib) vaccine: This protects against infections caused by Haemophilus influenzae type B, which can lead to serious illnesses like pneumonia and meningitis.

Meningococcal vaccine: This protects against Neisseria meningitidis, which can cause meningitis and bloodstream infections.

Influenza vaccine: This annual vaccine helps protect against seasonal flu, which can be severe in children with sickle cell disease.

Administering these vaccines according to the recommended schedule helps provide protection against certain infections and can improve outcomes for children with sickle cell disease during hospitalization and beyond. The other options, Factor X, steroids, and PCA morphine, are not specific measures for preventing infections in a child with sickle cell crisis.

D.PCA (patient-controlled analgesia) morphine is used for pain management during a sickle cell crisis. It does not directly prevent infections.

D. A client's blood pressure changes from 112/60 mm Hg to 90/54 mm Hg when standing.
A significant drop in blood pressure when changing positions from lying to standing may indicate orthostatic hypotension, which can be a sign of dehydration, blood loss, or other underlying medical issues. This can be a cause for concern, especially if the client is an adolescent, as it may lead to decreased perfusion of vital organs and may require immediate medical attention.

The other options are as follows:
A. A client who has a burn injury to an estimated 5% of his leg and is crying - While it's essential to assess and address the client's pain and comfort, this finding does not indicate an immediate need for medical attention. Pain management and wound care can be addressed based on the severity of the burn and the client's pain level.
B. A client who has an ankle fracture reports a pain level increase from 3 to 5 after initial ambulation - This finding is concerning, and the nurse should notify the provider to reassess pain management and evaluate for potential complications related to the fracture. However, it may not require immediate medical attention unless there are signs of severe pain or complications.
C. A client who is 1 day postoperative and has a temperature of 37.5° C (99.5° F) - A slight increase in temperature in the immediate postoperative period may not be unusual and can be attributed to the normal inflammatory response after surgery. The nurse should continue monitoring the client's temperature and report any further changes or additional signs of infection or complications to the provider.
Overall, while all findings should be addressed and managed appropriately, the significant drop in blood pressure (option D) should be reported immediately due to the potential implications for the client's overall health and well-being.