A staff education nurse is evaluating a group of nurses during a new employee orientation on the use of proper body mechanics when lifting. Which of the following images indicates the appropriate use of ergonomic principles?
A
B
C
The Correct Answer is A
A. First image: The individual is squatting with the knees bent, back straight, and using a wide base of support while keeping the box close to the body. This posture minimizes strain on the lower back and promotes safe lifting mechanics, which aligns with proper ergonomic principles.
B. Second image: The individual is standing upright while holding the boxes away from the body. This increases the lever arm and places excessive strain on the lumbar spine, increasing the risk of injury.
C. Third image: The individual is bending at the waist while lifting the boxes onto a surface. Bending at the waist with a rounded back significantly increases pressure on the lumbar vertebrae and is considered unsafe body mechanics.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. 0.9% normal saline: Initial fluid resuscitation in diabetic ketoacidosis (DKA) requires isotonic fluids like 0.9% normal saline to restore intravascular volume, improve perfusion, and correct electrolyte imbalances. This is the first-line intervention before initiating insulin therapy.
B. 0.45% saline: Half-normal saline is hypotonic and may be used later in DKA management if the client is stable and serum sodium is elevated. It is not appropriate as the initial continuous infusion because it does not provide adequate intravascular volume replacement.
C. Glargine insulin: Glargine is a long-acting insulin used for basal glucose control, not for acute management of DKA. Continuous IV insulin is required to rapidly reduce blood glucose and ketone levels.
D. NPH insulin: NPH is an intermediate-acting insulin administered subcutaneously. It is not suitable for continuous IV infusion in DKA, as IV insulin is preferred for rapid and controlled glucose reduction.
Correct Answer is D
Explanation
A. Phlebitis: Localized heat can actually help improve circulation and reduce discomfort in mild cases of phlebitis, so it is not an absolute contraindication. Heat therapy may be used cautiously depending on the severity and location.
B. Abdominal aortic aneurysm: Heat therapy applied to areas away from the aneurysm site is generally safe. There is no direct contraindication unless heat is applied over the aneurysm, which could increase local blood flow and risk.
C. Osteoarthritis: Heat therapy is commonly used to relieve joint stiffness and muscle spasms in osteoarthritis. Applying intermittent heat can improve comfort and mobility without causing harm.
D. Peripheral neuropathy: Clients with peripheral neuropathy have impaired sensation and may not perceive excessive heat, increasing the risk of burns or tissue injury. Therefore, impaired sensation is a contraindication for heat therapy to prevent thermal injury.
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