Correct Answer: B

Rationale: When a client is admitted with decreased circulation in the left leg, the most critical initial nursing action is to evaluate the pedal pulses. Pedal pulses provide essential information about the circulation status in the affected leg. Assessing the client's mobility (Choice A) is important but not as crucial as evaluating pedal pulses in this scenario. Monitoring skin temperature (Choice C) and checking for swelling (Choice D) are also relevant, but they are secondary to evaluating pedal pulses since the latter directly assesses the circulation in the affected limb.

Correct Answer: C

Rationale: A hematocrit (HCT) of 60 indicates severe dehydration, a critical condition in diabetic ketoacidosis that requires immediate intervention. Severe dehydration can lead to hypovolemic shock and organ failure. While a low pH below 7.3 is indicative of acidosis, it may not require immediate action compared to severe dehydration. A potassium level of 5.0 is within the normal range and not a critical finding in this scenario. PaO2 of 79% reflects oxygenation status, which is important but not the most critical finding requiring immediate action in diabetic ketoacidosis.

Correct Answer: A

Rationale: The correct way to prevent self-injury when lifting a bedside cabinet is by standing close to the cabinet. By standing close, the individual can maintain better control and balance while lifting, reducing the risk of injury. Bending at the waist when lifting (choice B) can strain the back and lead to injury. Twisting while lifting (choice C) can also cause strain and imbalance. Lifting with a quick motion (choice D) can increase the risk of injury due to lack of control and improper body mechanics.

Correct Answer: D

Rationale: In this scenario, the nurse should instruct the client to take deep, rhythmic breaths as a nonpharmacological pain management technique. Deep, rhythmic breathing helps with relaxation and pain management, potentially reducing the perception of pain. Encouraging the client to apply a heating pad for 2 hours at a time (Choice A) is not recommended as prolonged heat application can lead to tissue damage and is not suitable for mild back pain. Applying an ice pack for 1 hour (Choice B) may not be appropriate for mild back pain as cold therapy is more commonly used for acute injuries. Removing distractions from the client's room (Choice C) may help create a more calming environment, but it does not directly address the client's pain.

Correct Answer: C

Rationale: A prescription for once-daily medication is considered routine as it is meant for regular, daily administration to maintain therapeutic levels in the body. Single prescriptions are for one-time use only. Stat prescriptions are for immediate administration in urgent situations, while now prescriptions are also for immediate use but may have varying levels of urgency depending on the patient's condition. In this case, since the prescription is for once daily use, it falls under the category of routine prescription.