A nurse is calculating the BMI of a client who has a weight of 75 kg (165.3 lb) and a height of 1.8 m (5 ft 9 in). Which of the following values should the nurse calculate as the client's BMI?
42
28
32
24
The Correct Answer is D
Rationale:
A. 42: A BMI of 42 falls in the category of class III (severe) obesity. This would only occur if the client's weight were significantly higher than 75 kg for a height of 1.8 m.
B. 28: A BMI of 28 indicates overweight status. At 75 kg and 1.8 m tall, the client does not meet the weight requirement for a BMI this high, as 28 would correspond to a weight closer to 91 kg.
C. 32: A BMI of 32 falls in the obesity range. For someone who is 1.8 m tall, a BMI of 32 would require a weight of about 104 kg, which is much higher than the client’s actual weight of 75 kg.
D. 24: The BMI is calculated as weight (kg) divided by height (m²). Using the formula:
BMI = 75 / (1.8 × 1.8) = 75 / 3.24 ≈ 23.15, which rounds to 24, placing the client in the normal weight range.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Rationale:
A. “Dehydration is treated with calcium supplements.": Calcium supplementation is not a standard treatment for dehydration. Dehydration is primarily managed with fluid replacement, either orally or intravenously, depending on severity.
B. "Dehydration is caused by a decreased hemoglobin and hematocrit.": Dehydration often causes increased hemoglobin and hematocrit levels due to hemoconcentration, not a decrease. These lab values are used to assess hydration status but do not cause dehydration.
C. "Dehydration is associated with gastroesophageal reflux”: GERD is not a direct cause or result of dehydration. While fluid intake can influence GI symptoms, GERD and dehydration are unrelated conditions with different pathophysiologies.
D. "Dehydration can increase the risk for preterm labor”: Dehydration can trigger the release of antidiuretic hormone and oxytocin, both of which may lead to uterine contractions. It is a recognized risk factor for preterm labor and should be addressed promptly.
Correct Answer is B
Explanation
Rationale:
A. Troponin level: Troponin is a cardiac biomarker used to detect myocardial injury or infarction. It is not an indicator of nutritional status and does not reflect protein levels or nutrient balance.
B. Serum albumin: Albumin is a plasma protein synthesized in the liver and commonly used as a marker of long-term nutritional status. Low levels may suggest protein-energy malnutrition or chronic illness affecting nutrient absorption or intake.
C. Erythrocyte sedimentation rate: ESR is a nonspecific marker of inflammation or infection. While chronic disease can indirectly affect nutrition, ESR does not directly assess nutrient levels or dietary sufficiency.
D. Serum sodium: Sodium levels reflect fluid balance and electrolyte status but are not indicators of nutritional status. They may be influenced by hydration, renal function, or hormonal imbalances, not by dietary protein intake.
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