Which of the following statements reflects the principles of sterile technique?

Correct Answer: A

Rationale: The correct statement reflecting the principles of sterile technique is that sterile objects that come in contact with unsterile objects are considered contaminated. This principle is crucial in maintaining asepsis during medical procedures. Choice B is incorrect because items in a sterile package should only be used if they remain sterile; opening the package does not automatically contaminate the items. Choice C is incorrect as any part of a sterile field that hangs below the top of the table is considered unsterile. Choice D is incorrect as the edge of a sterile field and a border inward are typically considered unsterile to maintain the integrity of the sterile area.

Correct Answer: C

Rationale: The correct first action for the nurse to take when a patient has difficulty ambulating after surgery is to call for assistance with ambulation. This is essential to ensure the safety of the patient and prevent any potential falls or injuries. Encouraging deep breathing exercises (Choice A) may be beneficial but should not be the first priority when the patient is having difficulty walking. Assisting the patient in ambulating a short distance (Choice B) may put both the patient and the nurse at risk if the patient is struggling. Assessing the patient's pain level before ambulation (Choice D) is important but should come after ensuring that the patient can safely ambulate with assistance.

Correct Answer: B

Rationale: The correct answer is to measure the calf circumference of both legs when assessing a patient for possible DVT. An increase in calf circumference in one leg can indicate the presence of a DVT. Option A is incorrect because dorsiflexing the foot and checking for pain are not primary assessments for DVT. Option C is incorrect as redness of the skin may not always be present in cases of DVT. Option D is incorrect as performing a Doppler ultrasound scan is usually done after clinical assessment and to confirm the diagnosis, not as the initial priority assessment.

Correct Answer: B

Rationale: Correctly positioning a patient to reduce the risk of pressure ulcers involves using pillows to support bony prominences. This helps to relieve pressure from vulnerable areas and prevent the development of pressure ulcers. Choice A is incorrect because keeping a patient in the supine position for extended periods can increase the risk of pressure ulcers. Choice C is incorrect as turning the patient every 2 hours, rather than every 4 hours, is recommended to prevent pressure ulcers. Choice D is not the best option mentioned for positioning a patient to reduce pressure ulcer risk; although alternating pressure mattresses can be beneficial, using pillows for support is a more direct and commonly used method.

Correct Answer: B

Rationale: The correct method to reduce the risk of infection when handling a urinary catheter is to maintain sterile technique when inserting the catheter. Sterile technique helps prevent introducing pathogens into the urinary system, reducing the risk of infection. Choice A is incorrect because cleaning the catheter tubing with soap and water is not sufficient for preventing infection. Choice C is incorrect as clean gloves and technique are not enough; sterile technique is necessary. Choice D is incorrect as flushing the catheter tubing with sterile water, though important for maintaining catheter patency, does not address the need for sterile technique during insertion to prevent infection.