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Questions 158

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Question 1 of 5

A client with COPD is in respiratory failure. Which of the following results would be the most sensitive indicator that the client requires a mechanical ventilator?

Correct Answer: C

Rationale: A pH of 7.23 indicates severe respiratory acidosis, suggesting inadequate ventilation and the need for mechanical ventilation. PCO2 58 (
A) and HCO3 30 (
D) are elevated but less critical, and SaO2 90 (
B) is low but not definitive.

Question 2 of 5

A 28-year-old client comes to the clinic for her first prenatal examination. In relating her obstetrical history, she tells the nurse that she has been pregnant twice before. She had a 'miscarriage' with the first pregnancy after 6 weeks. With the second pregnancy, she delivered twin girls at 31 weeks' gestation. One of the twins was stillborn and the other twin died at 4 days of age. Using a five-digit system, the nurse records her as being:

Correct Answer: C

Rationale: The first digit represents the total number of pregnancies. This client has been pregnant 3 times including this pregnancy. The twin pregnancy counts as only one pregnancy, and because she delivered prior to 37 weeks' gestation, the third digit is recorded as 1. The first digit represents the total number of pregnancies. This client has been pregnant 3 times including this pregnancy. The second digit represents the total number of full-term deliveries; she has lost two pregnancies before 37 weeks' gestation. At present, she has no living children, so the fifth digit is noted as 0. The client is pregnant for the third time, and the first digit reflects the total number of pregnancies. She has had no full-term deliveries, because she delivered prior to 37 gestational weeks, so the second digit is recorded as 0. The third digit represents the number of preterm deliveries, and a twin pregnancy counts as only one delivery. She lost an earlier pregnancy prior to 20 gestational weeks, and the fourth digit reflects spontaneous or elective abortions. Lastly, the fifth digit indicates the number of children currently living, and she has no living children. She is pregnant for the third time, and the first digit reflects the total number of pregnancies. In the previous two pregnancies, she delivered prior to 37 gestational weeks, thus having no full-term deliveries, which is indicated by the second digit. The fourth digit represents the total number of abortions, spontaneous or elective, and she reported a spontaneous abortion with her first pregnancy.

Question 3 of 5

A child sustains a supracondylar fracture of the femur. When assessing for vascular injury, the nurse should be alert for the signs of ischemia, which include:

Correct Answer: C

Rationale: Bleeding, bruising, and hemorrhage may occur due to injury but are not classic signs of ischemia. An increase in serum levels of creatinine, alkaline phosphatase, and aspartate transaminase is related to the disruption of muscle integrity. Classic signs of ischemia related to vascular injury secondary to long bone fractures include the five 'P's': pain, pallor, pulselessness, paresthesia, and paralysis. Generalized swelling, pain, and diminished functional use with muscle rigidity and crepitus are common clinical manifestations of a fracture but not ischemia.

Question 4 of 5

A client admitted with a diagnosis of possible myocardial infarction is admitted to the unit from the emergency room. The nurse's first action when admitting the client will be to:

Correct Answer: B

Rationale: Obtaining vital signs is important after connecting the client to the monitor because vital signs should be stable before the client is discharged from the emergency room. All are important, but the first priority is to monitor the client's rhythm. If the client is in severe pain, pain medication should be given after connecting him to the monitor and obtaining vital signs. Completion of the history profile is the least important of the nursing actions.

Question 5 of 5

The local health clinic recommends vaccination against influenza for all its employees. The influenza vaccine is usually given annually in:

Correct Answer: A

Rationale: Influenza vaccines are typically administered in November, before the peak flu season, to ensure immunity during winter months.

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