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.
D.
A
B
C
D
None
None
The Correct Answer is C
A. This is incorrect since the load should be held as close to the nurse's center of gravity (the pelvis) as possible.
B. This is incorrect since the back should remain straight or in its natural "S" curve throughout the lift. The power for the lift should come from the gluteal and femoral muscles, not the back.
C. This is correct since the nurse is squatting and bending at the knees, keeping the back straight. Bending at the knees and hips to engage stronger leg muscles rather than the lower back. The object should also be kept close to the torso, not held at arm’s length, shoulders aligned, no twisting of the trunk, and the eyes forward, head aligned with the spine.
D. This is incorrect since the feet placement should be a wide base of support, one foot slightly ahead of the other. The back alignment includes the spine kept straight, no twisting or bending at the waist. Knees should be bent to lower the body, rather than bending forward.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Maintain bed elevation at 20°: The head of the bed should be elevated to at least 30° to 45° during enteral feedings to reduce the risk of aspiration. A 20° angle is inadequate for preventing reflux and potential aspiration.
B. Flush the tubing with 30 ml of water every 4 hr: Routine flushing of the feeding tube helps maintain patency and prevent clogging. Flushing every 4 hours is standard practice for continuous feedings to ensure uninterrupted delivery.
C. Place enough formula in the container to last 18 hr: Open system formula should be discarded after 4 hours to reduce the risk of bacterial contamination. Filling the container for 18 hours exceeds safe hang time recommendations.
D. Check for gastric residual every 12 hr: Gastric residuals should typically be checked every 4 to 6 hours for continuous feedings, or per facility policy. Waiting 12 hours may delay the identification of feeding intolerance or complications.
Correct Answer is {"A":{"answers":"B"},"B":{"answers":"A"},"C":{"answers":"A"},"D":{"answers":"B"},"E":{"answers":"A,B,C"}}
Explanation
- Urticaria: Urticaria (hives) is a hallmark sign of an allergic reaction, particularly latex allergy, and typically appears quickly following exposure to allergens. It is not seen in malignant hyperthermia or hypovolemic shock.
- Wheezing: Wheezing can occur in latex allergy due to bronchospasm or airway edema. While respiratory compromise may happen in malignant hyperthermia, it is typically due to muscle breakdown and CO2 retention, not bronchospasm. Wheezing is not expected in hypovolemic shock.
- Muscle rigidity: Generalized rigidity, especially of the jaw (masseter spasm), is a key early sign of malignant hyperthermia, a life-threatening reaction to certain anesthetics. It is not a symptom of latex allergy or hypovolemic shock.
- Hypercapnia: An elevated PaCO₂ is an early, sensitive marker of malignant hyperthermia, resulting from increased CO₂ production due to sustained muscle contraction. This does not occur in latex allergy or hypovolemic shock.
- Tachycardia: Elevated heart rate can be seen in all three conditions: in malignant hyperthermia due to increased metabolic demand, in latex allergy due to anaphylactic reaction, and in hypovolemic shock as a compensatory response to fluid loss.
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