A nurse is providing care for a client who experienced a myocardial infarction prior to a cardiac arrest. Which of the following laboratory tests will identify early injury to the cardiac muscle?

The correct answer is choice D. The nurse should include that information technology will install a firewall to secure client information.

A firewall is a system that protects the network from unauthorized access and prevents data breaches. A firewall is essential for ensuring the confidentiality, integrity, and availability of electronic health records .

Choice A is wrong because the nurse should change their password more frequently than once per year. Changing passwords regularly reduces the risk of unauthorized access and enhances security .

Choice B is wrong because the documentation of sensitive material is not performed by the charge nurse. The nurse who provides the care should document it accurately and promptly in the computerized system .

Choice C is wrong because the nurse will not be given access to the medical records of every client in the facility. The nurse should only access the records of the clients they are assigned to care for, following the principle of need-to-know .

The correct answer is Choice d. Positioning both hands on the grips with his elbows slightly flexed.

Choice A rationale:

• Moving both crutches with the stronger leg forward first is incorrect for a three-point gait.This describes a two-point gait,which is used when a client can bear weight on both legs.In a three-point gait,the client bears weight on the unaffected leg and the crutches,not the stronger leg.
• This action would put excessive weight on the affected leg and could potentially compromise healing or cause further injury.

Choice B rationale:

• Supporting his body weight while leaning on the axillary crutch pads is also incorrect.This can lead to nerve damage in the armpits and should be avoided.
• The weight should be distributed through the hands and wrists,not the armpits.

Choice C rationale:

• Stepping with his affected leg first when going up stairs is incorrect and potentially dangerous.The client should lead with the stronger leg when going up stairs to maintain balance and control.

Choice D rationale:

• Positioning both hands on the grips with his elbows slightly flexed is the correct action for using crutches with a three-point gait.This allows for proper weight distribution,balance,and control of the crutches.
• It also helps to prevent fatigue and strain in the arms and shoulders.

Key points to remember about the three-point gait:

• Weight is borne on the unaffected leg and the crutches,not the affected leg.
• The crutches and the unaffected leg move forward together,followed by the affected leg.
• The client should look ahead,not down at their feet.
• The client should take small,even steps.
• The client should rest as needed.