A nurse is teaching a client how to care for their behind-the-ear hearing aids. Which of the following statements by the client indicates an understanding of the teaching?

A. Acute hemolytic:
Acute hemolytic transfusion reactions typically present with symptoms such as fever, chills, flank pain, hemoglobinuria (blood in the urine), and possibly hypotension. This occurs due to the rapid destruction of transfused red blood cells, often because of ABO incompatibility between the donor and recipient. The symptoms described in the scenario, including chest tightness, are not consistent with acute hemolytic reactions.

B. Allergic:
Allergic reactions to blood transfusions can manifest with symptoms such as itching, hives, flushing, and mild respiratory distress. While headache and low-back pain can occur in allergic reactions, the feeling of "tightness" in the chest is more indicative of another type of reaction.

C. Bacterial:
Bacterial contamination of blood products can lead to transfusion-related sepsis. Symptoms may include fever, chills, hypotension, and rapid onset of shock. However, the presence of headache and low-back pain, along with chest tightness, is not typically associated with bacterial contamination.

D. Febrile nonhemolytic:
Febrile nonhemolytic transfusion reactions are characterized by fever, chills, and rigors. While fever and chills are common symptoms, they do not typically cause chest tightness or low-back pain.

A. The client reports that the restraints are too tight: This indicates a need for adjustment of the restraints but does not necessarily indicate that the restraints should be discontinued altogether. The client's ability to follow commands and behave safely is a more critical factor in deciding whether to discontinue the restraints.
B. The client has been in the restraints for 4 hours: While prolonged use of restraints should be avoided due to the risk of complications such as skin breakdown and loss of mobility, the duration alone may not be the sole indicator for discontinuing restraints. The client's behavior and ability to follow commands are more important considerations.
C. The client is able to calmly follow commands: This is the most appropriate finding indicating that the restraints should be discontinued. Calmly following commands suggests that the client's behavior has improved and they are no longer a danger to themselves or others, making the restraints unnecessary.
D. The client can explain the reasons for their behavior: While understanding the reasons for the client's behavior is important for addressing underlying issues, it does not necessarily indicate that the client is no longer a risk to themselves or others. The ability to calmly follow commands is a more immediate concern when deciding whether to discontinue restraints.