In a client's seventh month of pregnancy, she reports feeling "dizzy, like I'm going to pass out, when I lie down ﬂat on my back". The nurse explains that this is due to:
Select one:

Physiologic anemia due to maternal increased plasma volume.

Pressure of the gravid uterus on the maternal inferior vena cava and aorta.

Pressure of the presenting fetal part on the maternal diaphragm.

A 50% increase in maternal blood volume during pregnancy.

Answer and Explanation

The Correct Answer is B

Choice A Reason: Physiologic anemia due to maternal increased plasma volume. This is an incorrect answer that refers to a diﬀerent condition that aﬀects hemoglobin levels, not blood pressure. Physiologic anemia is a condition where the maternal plasma volume increases more than the red blood cell mass during pregnancy, which dilutes the hemoglobin concentration and lowers the hematocrit value. Physiologic anemia does not cause significant symptoms or complications in pregnant women, as it is an adaptive mechanism that enhances oxygen delivery and prevents ﬂuid overload.

Choice B Reason: Pressure of the gravid uterus on the maternal inferior vena cava and aorta. This is because this statement explains the cause of supine hypotensive syndrome, which is a condition where lying ﬂat on the back causes compression of the major blood vessels by the gravid uterus, which reduces venous return and cardiac output, which lowers blood pressure and perfusion to vital organs. Supine hypotensive syndrome can cause symptoms such as dizziness, lightheadedness, nausea, pallor, or syncope in pregnant women, especially in the third trimester.

Choice C Reason: Pressure of the presenting fetal part on the maternal diaphragm. This is an incorrect answer that indicates a diﬀerent condition that aﬀects respiratory function, not blood pressure. Pressure of the presenting fetal part on the maternal diaphragm is a result of cephalic engagement or lightening, which occurs when the fetal head descends into the pelvis and occupies more space in the abdominal cavity. Pressure of the presenting fetal part on the maternal diaphragm can cause symptoms such as dyspnea, heartburn, or rib pain in pregnant women.

Choice D Reason: A 50% increase in maternal blood volume during pregnancy. This is an incorrect answer that describes a normal physiological change that occurs during pregnancy, not a cause of supine hypotensive syndrome. A 50% increase in maternal blood volume during pregnancy is due to increased production of plasma and red blood cells, which helps meet the increased oxygen and nutrient demands of the fetus and placenta, and prepares the mother for blood loss during delivery. A 50% increase in maternal blood volume during pregnancy does not cause hypotension or dizziness in pregnant women.

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Correct Answer is A

Explanation

Choice A Reason: Latent phase of the first stage of labor. This is because this phase is characterized by mild and irregular contractions, slow cervical dilation (up to 4 cm), minimal cervical eﬀacement (up to 40%), and minimal discomfort or pain. The latent phase is also known as the early phase or preparatory phase of labor.

Choice B Reason: Transition phase of the first stage of labor. This is an incorrect answer that describes a diﬀerent phase with diﬀerent characteristics. The transition phase is marked by strong and frequent contractions, rapid cervical dilation (from 8 to 10 cm), complete cervical eﬀacement (100%), and intense discomfort or pain. The transition phase is also known as the terminal phase or acceleration phase of labor.

Choice C Reason: Perineal phase of the second stage of labor. This is an incorrect answer that refers to another stage and phase with diﬀerent features. The second stage of labor begins with complete cervical dilation (10 cm) and ends with delivery of the baby. The perineal phase is the last part of the second stage, where the baby's head crowns and emerges through the vaginal opening.

Choice D Reason: Active phase of the first stage of labor. This is an incorrect answer that indicates another phase with diﬀerent atributes. The active phase is characterized by moderate and regular contractions, progressive cervical dilation (from 4 to 8 cm), increased cervical eﬀacement (from 40% to 80%), and increased discomfort or pain. The active phase is also known as the middle phase or dilatation phase of labor.

A. Frequent voiding encourages sphincter control. B. A full bladder impedes oxygen ﬂow to the fetus. C. Frequent voiding prevents bruising of the bladder. D. A full bladder can impede fetal descent.

Correct Answer is D

Explanation

Choice A Reason: Frequent voiding encourages sphincter control. This is an incorrect statement that has no relevance to labor and delivery. Sphincter control refers to the ability to contract and relax the muscles that control urination and defecation. It is not aﬀected by frequent voiding.

Choice B Reason: A full bladder impedes oxygen ﬂow to the fetus. This is an incorrect statement that confuses a full bladder with a prolapsed cord. A prolapsed cord is a condition where the umbilical cord slips through the cervix before the baby and becomes compressed by the fetal head, which can reduce oxygen ﬂow to the fetus. A full bladder does not aﬀect oxygen ﬂow to the fetus.

Choice C Reason: Frequent voiding prevents bruising of the bladder. This is an incorrect statement that exaggerates the eﬀect of a full bladder on the bladder wall. A full bladder may cause some pressure or discomfort on the bladder, but it does not cause bruising or damage.

Choice D Reason: A full bladder can impede fetal descent. This is a correct statement that explains why it is important for the nurse to assess the bladder regularly and encourage the laboring client to void every 2 hours.

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In a client's seventh month of pregnancy, she reports feeling "dizzy, like I'm going to pass out, when I lie down ﬂat on my back". The nurse explains that this is due to: Select one:

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Naxlex Comprehensive Predictor Exams

Assessment of a woman in labor reveals cervical dilation of 3 cm, cervical eﬀacement of 30%, and contractions occurring every 8 to 10 minutes, lasting about 30 seconds. The nurse determines that this client is in: Select one:

Correct Answer is A

Explanation

Why is it important for the nurse to assess the bladder regularly and encourage the laboring client to void every 2 hours? Select one:

Correct Answer is D

Explanation

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In a client's seventh month of pregnancy, she reports feeling "dizzy, like I'm going to pass out, when I lie down ﬂat on my back". The nurse explains that this is due to:
Select one: