A nurse is caring for a client who has acute osteomyelitis.
The client asks the nurse to explain how she developed the infection.
The nurse should respond that which of the following organisms is the most common cause?
Staphylococcus aureus.
Pseudomonas aeruginosa.
Streptococcus
Escherichia coli.
The Correct Answer is A
Staphylococcus aureus is the most common cause of acute osteomyelitis.
Osteomyelitis is an infection of the bone that can be caused by a variety of microorganisms, including bacteria, fungi, and mycobacteria.
Staphylococcus aureus is present in more than 50% of patients with osteomyelitis that results from contiguous spread from adjacent infected tissue or open wounds.
Choice B is not an answer because Pseudomonas aeruginosa is a less common cause of osteomyelitis and is more commonly seen in injection drug users.
Choice C is not an answer because Streptococcus B is not a common cause of osteomyelitis.
Choice D is not an answer because Escherichia coli is not a common cause of osteomyelitis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The umbilical vein carries oxygen-rich blood to the fetus from the placenta.
The umbilical vein is an important part of fetal circulation and carries oxygenated blood from the placenta into the growing fetus.
Choice B is incorrect because the two umbilical arteries carry deoxygenated blood from the fetus to the placenta23.
Choice C is incorrect because there are not two umbilical veins, but only one12.
Choice D is incorrect because it is not the one umbilical artery that carries oxygen-rich blood to the fetus from the placenta, but rather the one umbilical vein14.
Correct Answer is A
Explanation
This is a diagnostic procedure that involves inserting a needle into the uterus to obtain a sample of amniotic fluid for testing.
This procedure can cause a small amount of fetal blood to enter the maternal circulation, which can trigger an immune response in Rh-negative women carrying Rh-positive fetuses.
RhoGAM is a medication that contains antibodies against the Rh factor and prevents the mother from developing her own antibodies that could harm the fetus or future pregnancies.
RhoGAM should be given within 72 hours after amniocentesis to Rh-negative women who are not already sensitized2.
Choice B.
Biophysical Profile is incorrect, as this is a noninvasive diagnostic procedure that involves ultrasound and fetal heart rate monitoring to assess fetal well-being.
This procedure does not cause fetomaternal hemorrhage and does not require RhoGAM administration.
Choice C.
The contraction stress test is incorrect, as this is a noninvasive diagnostic procedure that involves inducing uterine contractions and monitoring fetal heart rate response to assess fetal oxygenation.
This procedure does not cause fetomaternal hemorrhage and does not require RhoGAM administration.
Choice D.
A nonstress test is incorrect, as this is a noninvasive diagnostic procedure that involves monitoring fetal heart rate and movement to assess fetal well-being.
This procedure does not cause fetomaternal hemorrhage and does not require RhoGAM administration.
Therefore, choice A is the best answer to this question.
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