(A) The purpose of bladder irrigation is not to prevent bladder spasms, but to drain the bladder and decrease clot formation and obstruction. (B) A three-way system of bladder irrigation will cleanse the bladder and prevent formation of blood clots. A catheter obstructed by clots or other debris will cause prostatic distention and hemorrhage. (C) Scrotal edema seldom occurs after TURP. Bladder irrigation will not prevent this complication. (D) Prostatic infection seldom occurs after TURP. Bladder irrigation will not prevent this complication.

Section: Questions Set B
Explanation:
(A) Sites for injection need to be rotated, including abdominal sites, to enhance insulin absorption. (B) The pinch technique is the most effective method for obtaining skin tightness to allow easy entrance of the needle to subcutaneous tissues. (C) Massaging the site of injection facilitates absorption of the insulin. (D) Changing the needle will break the sterility of the system. It has become acceptable practice to reuse disposable needles and syringes for 3-7 days.

(A) Hyperacute T waves occur with hyperkalemia. (B) Prolongation of the P R interval occurs with first-degree AV block. (C) Horizontal ST-segment depression of>1 mm during exercise isdefinitely a positive criterion on the exercise ECG test. (D) Patho-logical Q waves occur with MI.

(A) Fetal tachycardia may indicate fetal hypoxia; however, 170 bpm is only mild tachycardia. (B) Nausea and vomiting occur frequently during transition and are not a complication. (C) Contractions frequently last 60-90 seconds during the transitional phase of labor and are not considered a complication as long as the uterus relaxes completely between contractions. (D) Passage of meconium in a vertex presentation is a sign of fetal distress; this may be normal in a breech presentation owing to pressure on the presenting part.

(A) Placental maturity is assessed by a biophysical profile. (B) L/S ratio and presence of phosphatidylglycerol are not used to determine fetal asphyxia. A biophysical profile score of6 may indicate this condition. (C) Cord compression is not reflected by the L/S ratio or presence of phosphatidylglycerol. Variable decelerations observed through electronic fetal monitoring could reflect umbilical cord compression. (D) An L/S ratio>2 and the presence of phosphatidylglycerol in amniotic fluid indicate fetal lung maturity.