What is considered a normal Body Mass Index (BMI)?
18.5 to 249 kg/m2
40kg/m2
25 to 29 kg/m2
Less than 18.5kg/m2
The Correct Answer is A
A. A normal BMI is defined as 18.5 to 24.9 kg/m². BMI is a screening tool used to assess body weight relative to height and estimate body fat. Values within this range are associated with a lower risk of weight-related health problems, including cardiovascular disease, diabetes, and certain metabolic disorders.
B. A BMI of 40 kg/m² is classified as class III obesity (severe or morbid obesity). Individuals in this range are at high risk for multiple health complications, including heart disease, hypertension, and type 2 diabetes.
C. A BMI of 25 to 29 kg/m² falls into the overweight category. While not as severe as obesity, being overweight still increases the risk of metabolic and cardiovascular conditions.
D. A BMI of less than 18.5 kg/m² is considered underweight. Being underweight can indicate malnutrition, eating disorders, or underlying medical conditions and is associated with increased risk for anemia, osteoporosis, and impaired immune function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Anabolism is the metabolic process of building larger molecules from smaller ones, such as synthesizing proteins from amino acids. While it is essential for growth and repair, it does not specifically refer to the total energy required to maintain vital functions at rest.
B. Basal metabolism refers to the minimum amount of energy expended by the body at rest to sustain essential physiological functions, including breathing, circulation, body temperature regulation, and cellular processes. Basal metabolic rate (BMR) is typically measured under strict conditions: the individual is at rest, in a post-absorptive state (not actively digesting food), and in a thermoneutral environment. BMR accounts for the largest portion of daily energy expenditure in most adults.
C. Energy balance refers to the relationship between calories consumed and calories expended. While energy balance influences body weight, it is a broader concept and not limited to the metabolic processes at rest.
D. Catabolism is the process of breaking down larger molecules into smaller ones to release energy, such as breaking down glycogen into glucose. Although catabolic processes contribute to energy production, the term does not describe the overall metabolic requirement for maintaining vital functions at rest.
Correct Answer is A
Explanation
A. These fish are high in mercury, a heavy metal that can cross the placenta and harm the developing fetal nervous system. Mercury exposure during pregnancy is associated with impaired cognitive development, delays in walking and talking, and other neurological deficits. Pregnant women are advised to avoid shark, swordfish, tilefish, and king mackerel to minimize these risks.
B. While these fish are high in protein, protein itself is beneficial during pregnancy and is not a reason to avoid these fish. The concern is specifically related to mercury content, not protein.
C. These fish are not low in minerals. In fact, fish generally provide important nutrients like selenium, iodine, and omega-3 fatty acids, which are beneficial during pregnancy.
D. Digestibility is not the issue. The problem is the potential toxic effect of mercury, not the difficulty of digesting the fish.
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