A shift to the left of the oxyhemoglobin dissociation curve would cause which of the following?
a. Better tissue perfusion c. Decreased hemoglobin affinity for O2
b. Lower SpO2 d. Impaired tissue oxygen delivery
D
When the curve is shifted to the left, there is a higher arterial saturation for any given PaO2 because hemoglobin has an increased affinity for oxygen. Although the saturation is higher, oxygen delivery to the tissues is impaired because hemoglobin does not unload as easily.
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An older man who is admitted to the hospital for surgery has a history of medication therapy for hypertension. Which intervention does the nurse implement when the client reports that, "I've fallen twice in 5 weeks"?
a. Blood pressure monitoring every 2 hours b. Orthostatic blood pressures c. Serum creatinine levels d. Blood levels of prescribed antihypertensive medications
During the period of time when a client diagnosed with a terminal illness became comatose, a health care proxy made decisions about the client's care
When the client regained consciousness a few days later, the nurse consulted whom regarding the client's ongoing care decisions? 1. The client 2. The health care proxy 3. The client's family 4. The client's physician
the color of the tube for collecting of a coagulation test is:
a. green b. light blue c. gray d. lavender
There has been serious hemorrhaging resulting in a client experiencing a fluid and electrolyte imbalance. The nurse should:
A. Initiate IV therapy B. Order blood for transfusions C. Remove and reapply any dressings D. Monitor vital signs every 15 minutes