If exhibited by a pregnant woman, what represents a positive sign of pregnancy?
Morning sickness.
Quickening.
Positive pregnancy test.
Fetal heartbeat auscultated with Doppler/fetoscope.
The Correct Answer is D
Choice A rationale:
Morning sickness, which refers to nausea and vomiting during pregnancy, is a common symptom but not a definitive sign of pregnancy. It can also be caused by various other factors such as food poisoning or gastrointestinal issues. Therefore, it is not a positive sign of pregnancy.
Choice B rationale:
Quickening, which refers to the first fetal movements felt by the mother, is a subjective sign of pregnancy. It is not a definitive indication of pregnancy as it can be mistaken for other abdominal sensations. Quickening usually occurs between 18 to 22 weeks of gestation, making it a later sign and not an early positive sign of pregnancy.
Choice C rationale:
A positive pregnancy test, specifically a blood or urine test detecting human chorionic gonadotropin (hCG), is a reliable indicator of pregnancy. However, it is a biochemical sign and not a physical sign. It does not directly confirm the presence of the fetus or its well-being, making it less specific than auscultating the fetal heartbeat.
Choice D rationale:
Fetal heartbeat auscultated with Doppler/fetoscope is a positive sign of pregnancy. The healthcare provider can hear the fetal heartbeat using a Doppler ultrasound device or fetoscope, confirming the presence of a viable pregnancy. This sign is considered positive because it directly indicates the presence of a developing fetus, providing reassurance about the pregnancy status. Fetal heartbeat can usually be detected around 10 to 12 weeks of gestation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
The correct answer. Surfactant is a substance that decreases surface tension in the alveoli of the lungs, preventing them from collapsing and sticking together. By improving the ability of the baby's lungs to exchange oxygen and carbon dioxide, surfactant therapy helps the infant breathe more effectively.
Choice B rationale:
Surfactant therapy is not related to sedation. Its primary function is to assist with lung function, not sedation.
Choice C rationale:
Surfactant therapy does not specifically address apnea. Its main purpose is to enhance the respiratory function of premature infants.
Choice D rationale:
Surfactant therapy is not used to fight respiratory tract infections. It is a treatment focused on improving the respiratory distress syndrome in premature infants.
Correct Answer is ["A","B"]
Explanation
Choice A rationale:
The cuff labeled "toddler" is an appropriate criterion for selecting the right-sized blood pressure cuff for a 2-year-old boy. Pediatric blood pressure cuffs are available in different sizes, and using a cuff specifically labeled for toddlers ensures a proper fit and accurate blood pressure measurement.
Choice B rationale:
The cuff bladder width being approximately 40% of the circumference of the upper arm is a correct criterion. Using a cuff with an appropriate width ensures that the cuff covers a significant portion of the upper arm, allowing for accurate blood pressure measurement. A cuff that is too narrow or too wide can lead to inaccurate readings.
Choice C rationale:
The cuff bladder length covering 80% to 100% of the circumference of the upper arm is an incorrect criterion. The length of the cuff bladder should cover about 80% of the upper arm's circumference, not 80% to 100%. Using a cuff that is too long can result in falsely low blood pressure readings.
Choice D rationale:
The cuff bladder covering 50% to 66% of the length of the upper arm is an incorrect criterion. The bladder width, which covers the circumference of the upper arm, is more critical than the length. The width should be approximately 40% of the upper arm's circumference for accurate blood pressure measurement in children.
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