A nurse is calculating the estimated date of delivery for a client who reports that the first day of her last menstrual period was August 10. Using Nägele's Rule, which of the following is the client's estimated date of delivery?
May 20.
May 3.
May 13.
May 17.
The Correct Answer is D
Choice A rationale:
To calculate the estimated date of delivery using Nägele's Rule, subtract three months from the first day of the last menstrual period (August 10), and then add seven days. However, choice A (May 20) is incorrect because it adds eight days instead of seven.
Choice B rationale:
It does not add seven days to the calculation.
Choice C rationale:
It adds three days instead of seven to the calculation
Choice D rationale:
It follows the correct application of Nägele's Rule. Subtracting three months from August 10 gives us May 10, and then adding seven days gives us May 17 as the estimated date of delivery.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The correct answer is Choice C.
Choice A rationale: Thiazide diuretics cause potassium and chloride loss, leading to metabolic alkalosis, not respiratory alkalosis. Hypokalemia decreases hydrogen ion excretion, increasing bicarbonate levels. Metabolic alkalosis is characterized by pH >7.45 and HCO₃⁻ >26 mEq/L rather than decreased PaCO₂.
Choice B rationale: Vomiting leads to metabolic alkalosis due to gastric acid loss. Hydrogen ion depletion increases bicarbonate concentration, shifting pH above normal. Arterial blood gases typically show increased HCO₃⁻ (>26 mEq/L) with a compensatory increase in PaCO₂ (>45 mmHg), not respiratory alkalosis.
Choice C rationale: Salicylate intoxication initially induces hyperventilation, reducing PaCO₂ levels below 35 mmHg and increasing pH above 7.45, leading to respiratory alkalosis. As toxicity progresses, metabolic acidosis may develop due to lactic acid accumulation, but early stages primarily present with respiratory alkalosis.
Choice D rationale: Hypoventilation leads to CO₂ retention, increasing PaCO₂ above 45 mmHg, forming carbonic acid (H₂CO₃) and causing respiratory acidosis. Blood gases show pH <7.35 with elevated PaCO₂, not respiratory alkalosis, which is caused by excessive CO₂ elimination through hyperventilation.
Correct Answer is B
Explanation
Choice A rationale:
Swaddling the baby tightly with his legs extended before laying him down to sleep is not a recommended practice, as it can increase the risk of hip dysplasia. Instead, the baby should be placed on their back in a safe sleep environment.
Choice B rationale:
This statement is correct because monitoring the baby's urinary output is essential in ensuring adequate hydration and proper kidney function. Less than six wet diapers a day could be a sign of dehydration and should be promptly reported to the pediatrician.
Choice C rationale:
It is not necessary to retract the foreskin to clean the baby's penis during each bath. The foreskin should be left alone and not forcibly retracted until it naturally loosens, usually around the age of 3 to 5 years.
Choice D rationale:
Applying triple antibiotic ointment on the baby's umbilical cord is not recommended, as the standard practice is to keep the umbilical cord clean and dry. This helps it to fall off naturally within a week or two after birth, reducing the risk of infection.
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