A primipara at 20-weeks gestation is scheduled for an ultrasound. In preparing the client for the procedure, the nurse should explain that the primary reason for conducting this diagnostic study is to obtain which information?
Chromosomal abnormalities
Sex and size of the infant
Lecithin-sphingomyelin ratio
Fetal growth and gestational age.
The Correct Answer is D
A. Chromosomal abnormalities:
While an ultrasound can sometimes identify structural abnormalities, it's not the primary tool for detecting chromosomal abnormalities. Genetic testing or procedures like amniocentesis are more specific for this purpose.
B. Sex and size of the infant:
An ultrasound is indeed used to determine the sex of the baby and assess its size and growth.
C. Lecithin-sphingomyelin ratio:
The lecithin-sphingomyelin ratio is typically assessed in tests related to fetal lung maturity, which is not the primary purpose of a routine ultrasound.
D. Fetal growth and gestational age:
This is one of the primary purposes of a routine ultrasound during pregnancy. It helps evaluate the baby's growth and ensures it aligns with the expected gestational age.
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Related Questions
Correct Answer is C
Explanation
A. Estimated amount of fluid:
Knowing the estimated amount of amniotic fluid can provide some information, but it may not be as crucial as other factors in this situation. The primary concern is often related to the color and odor of the amniotic fluid to assess for potential issues.
B. Color and consistency of fluid:
This is a crucial piece of information. The color and consistency of amniotic fluid can provide important clues about fetal well-being and the presence of meconium, which may indicate fetal distress.
C. Time the membranes ruptured:
Knowing the time when the membranes ruptured is essential for assessing the duration of time since the rupture. This information helps in determining the risk of infection, which is a concern after prolonged rupture of membranes.
D. Any odor noted when membranes ruptured:
This is also a critical piece of information. An unpleasant odor, especially if it is foul-smelling, could be indicative of infection. Infection risk increases with prolonged rupture of membranes.
Correct Answer is ["450"]
Explanation
- To calculate the infusion rate, use the formula:
(mL of solution / grams of drug) x (grams ordered / minutes to infuse) x 60
- In this case, the formula becomes: (500 mL / 20 g) x (6 g / 20 min) x 60
- Simplify and solve: (25 mL / g) x (0.3 g / min) x 60
- The answer is 450 mL/hour
- The nurse should set the infusion pump at 450 mL/hour
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