When preparing a presentation for a senior center about age-related musculoskeletal changes, which of the following changes should be included?
Decreased muscle mass
Thickened vertebral disks
Increased force of isometric contraction
Reduced chest width
The Correct Answer is A
Choice A rationale
Decreased muscle mass is a common age-related musculoskeletal change. As people age, they tend to lose muscle mass due to changes in muscle fiber and decreased physical activity. This can lead to weakness and decreased mobility.
Choice B rationale
Thickened vertebral disks are not typically an age-related change. Instead, the disks often become thinner and less flexible with age, which can lead to conditions like degenerative disk disease.
Choice C rationale
Increased force of isometric contraction is not an age-related musculoskeletal change. In fact, both isometric and isotonic muscle strength tend to decrease with age.
Choice D rationale
Reduced chest width is not typically an age-related musculoskeletal change. However, changes in posture and spinal curvature can affect the shape and function of the chest.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
While respiratory distress can be a serious condition in infants, it is not the leading cause of death among this age group. Other conditions, such as sudden infant death syndrome and complications from premature birth, are more common causes of death in infants.
Choice B rationale
Sudden Infant Death Syndrome (SIDS) is indeed a leading cause of death among infants. It is a significant health concern and a major cause of post-neonatal death. SIDS is the unexplained death, usually during sleep, of a seemingly healthy baby less than a year old.
Choice C rationale
Congenital anomalies can cause death in infants, but they are not the leading cause. Conditions such as SIDS and complications from premature birth are more common causes of infant death.
Choice D rationale
Low birth weight can contribute to health problems in infants and increase the risk of infant mortality. However, it is not the leading cause of death among infants. Conditions such as SIDS and complications from premature birth are more common causes.
Correct Answer is D
Explanation
Choice A rationale
Betamethasone, a corticosteroid, is not known to weaken uterine contractions. It is often administered to pregnant women at risk of preterm delivery to enhance fetal lung maturation and reduce complications associated with prematurity.
Choice B rationale
Betamethasone can potentially increase blood glucose levels, not decrease them. This is particularly relevant in women with gestational diabetes, as corticosteroids can exacerbate hyperglycemia.
Choice C rationale
Betamethasone does not typically decrease the fetal heart rate. Instead, it is used to help mature the lungs of the fetus.
Choice D rationale
Betamethasone is administered to pregnant women at risk of preterm delivery to enhance the production of surfactant in the fetal lungs. Surfactant is a substance that prevents the small air sacs in the lungs from collapsing, thereby aiding in the baby’s ability to breathe after birth.
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