Explanation/Reference:
Explanation:
(A) The client may need to avoid some potassium-rich foods (such as bananas, raisins, etc.). However, this is not because of the potassium content of these foods. (B) Tryptophan is an essential amino acid that is present in high concentrations in animal and fish protein. (C) The client will need to watch his dietary intake of tyramine. Tyramine is a by-product of the conversion of tyrosine to epinephrine. Tyramine is found in a variety of foods and beverages, ranging from aged cheese to caffeine drinks. Ingestion of tyramine-rich foods while taking a MAO inhibitor may lead to an increase in blood pressure and/or a life- threatening hypertensive crisis. (D) To maintain a healthy lifestyle, restriction of dietary saturated fats is advisable.

Section: Questions Set D
Explanation:
(A) A rigid, board like abdomen is an assessment finding indicative of placenta abruptio. (B) A cause of postbirth hemorrhage is uterine atony. With placenta previa, uterine tone is within normal range. (C) The placenta is located directly over the cervical os in complete previa. Blood will escape through the os, resulting in the uterus and abdomen remaining soft and relaxed. (D) In placenta abruptio, hypertonicity of the uterus is caused by the entrapment of blood between the placenta and uterine wall, a retroplacental bleed. This does not exist in placenta previa.

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.

Section: Questions Set C
Explanation:
(A) The infant is placed on the warmer and dried after birth. Cold stress occurs when the infant is not dried and kept warm. (B) The fact that this infant was born by cesarean delivery does not place him at a greater risk for cyanosis than an infant delivered vaginally. Cyanosis occurs when infants cannot oxygenate their blood after the umbilical cord is severed. (C) Infants born by cesarean delivery are at a higher risk for developing respiratory distress syndrome because these infants do not pass through the pelvis, where the chest is compressed and fluid is able to escape from the lungs. (D) Cesarean-delivered infants are not at greater risk for seizures than infants delivered vaginally.

(A) Visual images are blurred and distorted. (B) Symptoms are headaches, burning eyes, fatigue, squinting, and difficulty reading. (C) These symptoms are classic for myopia. (D) Amblyopia is not a refractive error. It is a loss of vision in one or both eyes.