P.T. is a married 30-year-old gravida 4, para 1-2-0-3 at 28 weeks' gestation. She arrives in the labor and delivery unit reporting lower back pain and frequency of urination. She states that she feels occasional uterine cramping and does not believe that her membranes have ruptured.

P.T.'s history reveals that she had 1 preterm delivery 4 years ago at 31 weeks gestation. The newborn girl was in the neonatal intensive care unit (NICU) for 3 weeks and discharged without sequelae. The second preterm newborn, a boy, was delivered 2 years ago at 35 weeks gestation and spent 4 days in the hospital before discharge. She has no other risk factors for preterm labor. Vital signs are normal. Her vaginal examination findings indicate her cervix to be long, closed, and thick with membranes intact. Abdominal examination revealed that the abdomen was non-tender, with fundal height at 29 cm, and the fetus was in a vertex presentation.

While waiting for lab results, you consider that if P.T. is actually experiencing preterm labor, she would receive antenatal glucocorticoids. How long do these drugs take to become effective?

P.T. is a married 30-year-old gravida 4, para 1-2-0-3 at 28 weeks' gestation. She arrives in the labor and delivery unit reporting lower back pain and frequency of urination. She states that she feels occasional uterine cramping and does not believe that her membranes have ruptured.

Early recognition of preterm labor is essential for a successful outcome. Explain the signs and symptoms of preterm labor.

P.T. is a married 30-year-old gravida 4, para 1-2-0-3 at 28 weeks' gestation. She arrives in the labor and delivery unit reporting lower back pain and frequency of urination. She states that she feels occasional uterine cramping and does not believe that her membranes have ruptured.

P.T.'s history reveals that she had 1 preterm delivery 4 years ago at 31 weeks gestation. The newborn girl was in the neonatal intensive care unit (NICU) for 3 weeks and discharged without sequelae. The second preterm newborn, a boy, was delivered 2 years ago at 35 weeks gestation and spent 4 days in the hospital before discharge. She has no other risk factors for preterm labor. Vital signs are normal. Her vaginal examination findings indicate her cervix to be long, closed, and thick with membranes intact. Abdominal examination revealed that the abdomen was non-tender, with fundal height at 29 cm, and the fetus was in a vertex presentation.

Lifestyle modifications are required for P.T. because of the symptoms of preterm labor. Which activities would you discuss with P.T.?

a. Suppose you know that a compound is 11.2% H and 88.8% O. What information do you need to determine the empirical formula? b. What additional information do you need to determine the molecular formula?

A client who's 32 weeks pregnant is hospitalized with preterm labor. After preterm labor is arrested, she's discharged with a prescription for oral terbutaline (Brethine). Which instruction should the nurse provide during discharge teaching?

P.T. is a married 30-year-old gravida 4, para 1-2-0-3 at 28 weeks' gestation. She arrives in the labor and delivery unit reporting lower back pain and frequency of urination. She states that she feels occasional uterine cramping and does not believe that her membranes have ruptured. You are the charge nurse and admit P.T. to the unit. Based on her symptoms you suspect she may be experiencing signs of:

You need additional information from P.T. to determine what you will do next. What important questions do you need to ask to differentiate what is going on with P.T.?

Oxygen $\left(\mathrm{O}_{2}\right)$ is heated during a steady-flow process at 1 atm from 298 to 3000 K at a rate of 0.5 kg/min. Determine the rate of heat supply needed during this process, assuming (a) some $\mathrm{O}_{2}$ dissociates into O and (b) no dissociation takes place.

For a certain bowling league, a beginning bowler computes her handicap by taking 90% of the difference between 220 and her average score in league play. Determine the average scores that would produce a handicap of 72 or less. Also assume that a negative handicap is not possible in this league.

P.T.'s history reveals that she had one preterm delivery 4 years ago at 31 weeks' gestation. The infant girl was in the neonatal intensive care unit (NICU) for 3 weeks and discharged without sequelae. The second preterm infant, a boy, was delivered 2 years ago at 35 weeks' gestation and spent 4 days in the hospital before discharge. She has no other risk factors for preterm labor. Vital signs are normal. Her vaginal examination findings were essentially within normal limits: cervix long, closed, and t hick; membranes intact. Abdominal examination revealed that t he abdomen was nontender, with fund al height at 29 cm, fetus in a vertex presentation.
If P.T. is in preterm labor, the nurse can expect that her provider will initiate medication therapy to stop the uterine contractions. Which class of medication is useful in stopping uterine contractions?
a. Tocolytics
b. Antianxiety medications
c. Cervical ripening agents
d. Antibiotic therapy.

A compound composed of 2.1% H, 29.80% N, and 68.1% O has a molar mass of approximately 50 g/mol. What is its Lewis structure if H is bonded to O?

Use the formula for the sum of an infinite geometric series to solve this exercise.

How much additional spending will be generated by a $\$ 10$ billion tax rebate if $60 \%$ of all income is spent?

Charlotte recorded the number of minutes she spent exercising in the past ten days: 12, 4, 5, 6, 8, 7, 9, 8, 2, 1. Find the median of the data.

At first, Bauby's eye movements must have seemed like random, _______ blinks. a. swift b. impatient c. confused d. meaningless