Section: Questions Set C
Explanation:
(A) Air embolism is a potential complication of blood administration, but it is fairly rare and can be prevented by using good IV technique. (B) Circulatory overload is a potential complication of blood administration, but because this client is actively bleeding, she is not at high risk for overload. (C) Hypocalcemia is a potential complication of blood administration that occurs in situations where massive transfusion has occurred over a short period of time. It occurs because the citrate in stored blood binds with the client's calcium. Another potential complication for which this client is especially at risk is hypothermia, which can be prevented by using a blood warmer to administer the blood. (D) Hypokalemia is not a complication of blood administration.

Explanation/Reference:
Explanation:
(A) Acetaminophen (Tylenol) has analgesic and antipyretic actions approximately equivalent to those of aspirin. It produces analgesia possibly by action on the peripheral nervous system. It reduces fever by direct action on the hypothalamus heat-regulating center with consequent peripheral vasodilation. It is generally used for temporary relief of mild to moderate pain, such as a simple headache, minor joint and muscle pains, and control of fever. (B) Meperidine is a narcotic agonist analgesic with properties similar to morphine except that it has a shorter duration of action and produces less depression of urinary retention and smooth muscle spasm. It is used for moderate to severe pain, for a preoperative medication, for support of anesthesia, and for obstetrical analgesia. In a postoperative TURP client, it would be used in conjunction with other medications for relief of moderate to severe pain, but not specifically for bladder spasms associated with TURP surgery. (C) Promethazine hydrochloride is an antihistamine, antiemetic preparation. It exerts antiserotonin, anticholinergic, and local anesthetic actions. It is used for symptomatic relief of various allergic conditions, motion sickness, nausea, and vomiting. It is used for preoperative, postoperative, and obstetrical sedation and as an adjunct to analgesics for control of pain. (D) This answer is correct because aminocaproic acid is prescribed specifically for hematuria. Aminocaproic acid is excreted in the urine. The nurse should be alert for possible signs of thrombosis, particularly in the extremities.

Explanation
(A) This answer is incorrect. Alcohol withdrawal usually begins approximately 6-8 hours after the last drink.
(B) This answer is correct. It takes approximately 6-8 hours for metabolism of alcohol. (C) This answer is incorrect. The alcohol is still in the system, as indicated by the high blood alcohol level. (D) This answer is incorrect. Symptoms of alcohol withdrawal usually begin within 6-8 hours of the last drink.

Explanation/Reference:
Explanation:
(A) Repression is blocking a desire from conscious expression. The client is conscious of his desires. (B) Regression is returning to an earlier form of expression, which is not demonstrated here. (C) Reaction formation is acting out the opposite of true feelings. The client felt anger concerning his wife's cooking and acted out his feelings. (D) Rationalization is unconsciously falsifying an experience by giving a "rational" explanation. The client is attempting to justify his behavior by giving an explanation.

(A) The O2 content of whole blood is determined by the partial pressure of oxygen (PO2) and the oxygen saturation. The pulse oximeter does not measure the PO2. (B) The pulse oximeter is a noninvasive method of measuring the arterial oxygen saturation. (C) The PO2 is the amount of O2 dissolved in plasma, which the pulse oximeter does not measure. (D) The affinity of hemoglobin for O2 is the relationship between oxygen saturation and PO2 and is not measured by the pulse oximeter.