The practical nurse (PN) is reviewing education for the parents of an infant with developmental dysplasia of the hip about dynamic splinting.
Which information should the PN reinforce about the purpose of this treatment?
Promotes range-of-motion.
Increases extension.
Maintains abduction.
Provides immobilization.
The Correct Answer is C
Choice A rationale
Promoting range-of-motion is typically achieved through exercises and movement. Dynamic splinting aims to maintain a specific joint position rather than actively increasing range of motion, which might be counterproductive to hip stability in developmental dysplasia.
Choice B rationale
Increasing extension would involve straightening the hip joint. In developmental dysplasia of the hip, the goal of treatment is to maintain the femoral head within the acetabulum, which often requires a flexed and abducted position, not extension.
Choice C rationale
Maintaining abduction is the primary purpose of dynamic splinting in developmental dysplasia of the hip. Abduction helps to seat the femoral head deeply into the acetabulum, promoting proper hip development and stability by stimulating acetabular ossification.
Choice D rationale
Providing immobilization implies completely restricting movement. Dynamic splinting, like the Pavlik harness, allows some movement while maintaining the abduction, flexion, and external rotation necessary for proper hip development. Full immobilization is typically not the goal for developmental dysplasia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Describing the percentage of saturated perineal pads is a subjective and imprecise method for estimating blood loss. Variations in pad size, absorbency, and the client's perception can lead to significant inaccuracies, making it unreliable for precise clinical assessment of hemorrhage.
Choice B rationale
While hematocrit levels are crucial for assessing overall blood volume status, obtaining an hourly hematocrit is an indirect and reactive measure of acute blood loss. It reflects hemodilution or hemoconcentration over time rather than providing a real-time, accurate quantification of the volume of blood lost. Normal hematocrit for pregnant women is 33% to 44%.
Choice C rationale
Changes in vital signs, such as tachycardia, hypotension, and tachypnea, are late indicators of significant blood loss and hypovolemic shock. Relying solely on vital signs means that a substantial amount of blood has already been lost before changes become apparent, making it an insensitive method for early detection and estimation.
Choice D rationale
Calculating the difference in weight of perineal pads before and after use provides a highly accurate objective measurement of blood loss. One gram of weight is approximately equivalent to one milliliter of blood, allowing for precise quantification and enabling timely and appropriate clinical interventions.
Correct Answer is ["0.7"]
Explanation
Step 1 is: Convert pounds to kilograms. 58 pounds ÷ 2.2 pounds/kg = 26.36 kg.
Step 2 is: Calculate the total milligrams per dose. 1 mg/kg × 26.36 kg = 26.36 mg.
Step 3 is: Calculate the volume to administer per dose. 26.36 mg ÷ (40 mg/mL) = 0.659 mL.
Step 4 is: Round to the nearest tenth. 0.7 mL.
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