The critical point of the oxyhemoglobin dissociation curve is when
A) a large decrease in PaO2 causes a large decrease in SaO2.
B) a large decrease in PaO2 causes a small decrease in SaO2.
C) a small decrease in PaO2 causes a large decrease in SaO2.
D) a small decrease in PaO2 causes a small decrease in SaO2.
C
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A client recovering from a hysterectomy does not want to take the prescribed estrogen replacement therapy because of the fear of developing breast cancer. Which response by the nurse is the most appropriate?
A) "The risk of breast cancer is slightly increased for women who opt to take estrogen replacement therapy." B) "Perhaps you should consider an estrogen-progestin combination therapy." C) "The risk of breast cancer is not increased for women who have had a hysterectomy and take estrogen replacement medications." D) "Taking estrogen replacement is required after a hysterectomy."
Which measure would be appropriate for the nurse to take in caring for a client with chronic renal failure receiving dialysis via a right arm fistula?
A. Take the client's blood pressure in both arms. B. Take the client's blood pressure in the left arm only. C. Place the right arm in a sling to protect it from injury. D. Have the client perform active ROM arm exercises to aid blood flow to the fistu-la.
The nurse is instructing a female client on how to cleanse the perineum before collecting a clean catch urine specimen for culture and sensitivity. What should the nurse instruct this client to do?
1. Clean the perineal area using a circular motion. 2. Use all towelettes provided. 3. Use each towelette once, and discard. 4. Clean the perineal area from back to front. 5. Clean the perineal area from front to back.
Which of the following communication techniques is most effective to use with an anxious client?
A) Ask open-ended questions to facilitate self-expression. B) Provide an open, populated area to decrease fears of abandonment. C) Speak slightly louder than usual to improve communication. D) Stand or sit in the center of the client's visual field to facilitate attention.