A 5.6 kg patient is receiving digoxin by mouth every 8 hours. The safe dose is 0.03-0.06 mg/kg/day. What is the maximum safe dose for this patient? (Round to the nearest hundredth.)
The Correct Answer is ["0.34"]
Given:
- Patient weight = 5.6 kg
- Safe dose = 0.03–0.06 mg/kg/day
Step 1: Use the formula for maximum safe dose
Maximum dose = Weight × Maximum mg/kg/day
Step 2: Substitute the values
Maximum dose = 5.6 × 0.06
Step 3: Calculate
Maximum dose = 0.336 mg/day
Step 4: Round to the nearest hundredth
Maximum dose = 0.34 mg/day
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Differentiation refers to the progression from simple, global behaviors to more complex, specific skills, such as grasping with fingers instead of the whole hand. While differentiation occurs during development, the sequence described focuses on head-to-toe progression, not skill refinement.
B. Proximodistal development describes growth and skill acquisition from the center of the body outward (e.g., control of the trunk before the hands and fingers). The sequence in this example emphasizes head and upper body control first, not central-to-peripheral development.
C. Individual differences refer to the variations in the timing and rate at which children reach developmental milestones. While relevant, this principle does not explain the specific head-to-toe progression demonstrated.
D. Cephalocaudal development refers to growth and motor control that progresses from head to tail (top to bottom). The infant first gains control of the head and neck, then the upper body, and later the lower body and sitting posture. This head-to-toe pattern of motor development is exemplified by lifting the head, rolling over, and sitting with support.
Correct Answer is A
Explanation
A. Infants cannot verbally communicate pain, so nurses rely on observational cues. Pulling at the ear, arching the back, grimacing, and irritability are valid behavioral indicators of pain and help guide assessment of location and severity. Combining these with physiological signs, such as increased heart rate or changes in respiratory pattern, provides a comprehensive understanding of the infant’s pain.
B. Physiological indicators like tachycardia, hypertension, or increased respiratory rate are nonspecific and may reflect stress, fever, or other illness, so relying solely on them is inadequate for pain assessment.
C. Infants cannot verbalize pain, but behavioral cues are well-recognized and validated indicators of pain. Assuming pain cannot be assessed without speech is inaccurate.
D. Infants do not exhibit pain behaviors to manipulate caregivers. Behaviors such as ear pulling, back arching, and grimacing are genuine indicators of discomfort or pain and should be taken seriously.
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