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The nursing, intructor is explaining the cardinal movements of labor to the nursing students. The instructor explains that the initial descent of the fetus into the pelvis to zero station is which one of the cardinal movements of labor.

A.

Flexion

B.

Engagement

C.

Extension

D.

Expulsion

Answer and Explanation

The Correct Answer is B

A) Flexion:
Flexion is a movement where the fetal head bends forward during labor, which allows the smallest diameter of the head to pass through the birth canal. It is an important part of the labor process but does not refer to the initial descent of the fetus into the pelvis. Flexion typically occurs once the fetus begins to descend into the pelvis.

B) Engagement:
Engagement refers to the initial descent of the fetal head into the pelvis and the passage of the largest part of the fetal head (the biparietal diameter) into the maternal pelvis. This occurs when the fetal head reaches zero station at the level of the ischial spines and is the first cardinal movement of labor. It marks the point at which the presenting part of the fetus enters the pelvic inlet and begins the process of descent.

C) Extension:
Extension is the movement of the fetal head as it exits the birth canal after engagement and descent. The head moves from a flexed position (chin to chest) to an extended position (chin moving away from the chest) as it passes through the birth canal. This movement occurs after engagement and is a part of the expulsion phase, not the initial descent.

D) Expulsion:
Expulsion is the final phase of labor, which occurs after the fetal head has been delivered. It involves the delivery of the rest of the body (shoulders, torso, and legs) following the birth of the head. This is the final cardinal movement, which takes place after engagement, descent, flexion, internal rotation, extension, and external rotation.
 


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Related Questions

Correct Answer is ["3.6"]

Explanation

Given:

Desired dose: Ceftazidime 1 g IM every 6 hours

Available concentration: Ceftazidime 280 mg/mL

To find:

Volume to administer (in mL)

Step 1: Convert desired dose to milligrams

1 gram (g) is equal to 1000 milligrams (mg).

Multiply by 1000:

Desired dose (mg) = Desired dose (g) x 1000

Desired dose (mg) = 1 g x 1000 = 1000 mg

Step 2: Set up the proportion

We can use the following proportion to solve the problem:

(Desired dose) / (Available concentration) = Volume to administer

Step 3: Substitute the values

Plugging in the given values, we get:

(1000 mg) / (280 mg/mL) = Volume to administer

Step 4: Simplify

To simplify, we can invert the denominator and multiply:

(1000 mg) x (1 mL / 280 mg) = Volume to administer

The "mg" units cancel out, leaving us with:

(1000 x 1 mL) / 280 = Volume to administer

Step 5: Calculate

Performing the multiplication and division, we get:

1000 mL / 280 = Volume to administer

3.57 mL ≈ Volume to administer

Step 6: Round to the nearest tenth

3.6mL

Correct Answer is B

Explanation

Naegele's Rule is a method used to estimate the due date of a pregnancy. It involves the following steps:

  1. Start with the first day of the client's last menstrual period (LMP).
  2. Add one year.
  3. Subtract three months.
  4. Add seven days.

Using the client's LMP of September 17:

  1. Start with September 17.
  2. Add one year: September 17, the following year.
  3. Subtract three months: June 17 of the following year.
  4. Add seven days: June 24.

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