Nokea
Which mechanism of labor occurs when the largest diameter of the fetal presenting part passes the pelvic inlet?
- A. Extension
- B. Engagement
- C. Internal rotation
- D. External rotation
Correct Answer: B
Rationale: The correct answer is B: Engagement. Engagement occurs when the largest diameter of the fetal presenting part (usually the biparietal diameter of the fetal head) passes through the pelvic inlet. This marks the beginning of the descent of the fetal head into the pelvis in preparation for birth. Extension (A) refers to the movement of the fetal head as it passes through the birth canal. Internal rotation (C) is the movement of the fetal head to align with the maternal pelvis. External rotation (D) occurs as the fetal head exits the birth canal.
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If a notation on the patient’s health record states that the fetal position is LSP, this indicates that the
- A. head is in the right posterior quadrant of the pelvis.
- B. head is in the left anterior quadrant of the pelvis.
- C. buttocks are in the left posterior quadrant of the pelvis.
- D. buttocks are in the right upper quadrant of the abdomen.
Correct Answer: C
Rationale: The correct answer is C because LSP stands for Left Sacrum Posterior, indicating the baby's buttocks are in the left posterior quadrant of the pelvis. In this position, the baby's head will typically be in the right anterior quadrant of the pelvis. Choice A is incorrect as it describes the head in the right posterior quadrant. Choice B is incorrect as it describes the head in the left anterior quadrant. Choice D is incorrect as it describes the buttocks in the right upper quadrant of the abdomen, which is not related to the fetal position LSP.
What is a direct influence on cervical dilation? Select all that apply.
- A. positioning of the pregnant person
- B. strength of uterine contractions
- C. length of time since ROM
- D. fetal presentation
Correct Answer: A
Rationale: The correct answer is A: positioning of the pregnant person. The position of the pregnant person can directly influence cervical dilation by affecting the alignment of the uterus and baby, allowing for optimal pressure on the cervix. Proper positioning can facilitate the descent of the baby's head onto the cervix, promoting dilation.
Summary of why other choices are incorrect:
B: The strength of uterine contractions indirectly influences cervical dilation by aiding in the effacement and descent of the baby, but it does not directly impact dilation.
C: The length of time since ROM (rupture of membranes) can affect the risk of infection but does not directly influence cervical dilation.
D: Fetal presentation refers to the position of the baby in the uterus and can affect labor progress, but it does not directly impact cervical dilation.
An infant was born 1 minute ago and the Apgar score is being assigned. The infant has blue extremities, minimal flexion, a weak cry, a heart rate of 110 beats per minute, and coughs and pulls away when suctioned. How many points should be assigned? Record your answer using a whole number:
- A. 3
- B. 2
- C. 1
Correct Answer: A
Rationale: The correct answer is A: 3 points. Apgar scoring assesses the newborn's overall condition at 1 and 5 minutes after birth. In this case, the infant's Apgar score should be 3 because the baby displays signs of mild distress with blue extremities, weak cry, and minimal flexion. The heart rate of 110 BPM and response to suctioning indicate some normal function. Each category (color, heart rate, reflex irritability, muscle tone, and respiratory effort) can score up to 2 points, totaling 10 points. Blue extremities and weak cry correspond to 1 point each, while minimal flexion corresponds to 0 points. The heart rate (110 BPM) and response to suctioning indicate 2 points each, totaling 3 points. Therefore, the correct score is 3 points. Choices B, C, and D are incorrect as they do not accurately reflect the severity of the infant's condition based on the Apgar
Which of the following is a function of a doula during labor?
- A. Administration of oral pain medications
- B. Assess fetal heart rate
- C. Perform vaginal examination with the mother’s permission
- D. Provide nonpharmacological pain relief
Correct Answer: D
Rationale: The correct answer is D: Provide nonpharmacological pain relief. A doula's role is to offer emotional support, comfort measures, and advocacy during labor. Providing nonpharmacological pain relief techniques such as massage, breathing exercises, and positioning is within the scope of a doula's practice. This helps the mother cope with labor discomfort without the use of medication.
Choice A is incorrect because doulas do not administer medications. Choice B is incorrect as assessing fetal heart rate is typically done by healthcare providers. Choice C is incorrect as performing vaginal examinations is not a part of a doula's role.
What makes up the powers of labor and birth?
- A. contractions and pushing efforts
- B. pelvis and pelvic floor tissues
- C. fetal position, attitude, lie, and presentation
- D. oxytocin
Correct Answer: A
Rationale: The correct answer is A: contractions and pushing efforts. During labor and birth, contractions help to dilate the cervix and push the baby down the birth canal. Pushing efforts from the mother help to expel the baby out. Pelvis and pelvic floor tissues (choice B) provide the passage for the baby but do not actively contribute to the powers of labor. Fetal position, attitude, lie, and presentation (choice C) refer to the baby's position and orientation in the womb, which can affect the progress of labor but do not constitute the powers of labor. Oxytocin (choice D) is a hormone that stimulates contractions but is not the sole component of the powers of labor and birth.