Answers and Rationales for NCLEX-PN Practice Exam Part 7

View the NCLEX-PN Practice Test Part 7

1.      Answer C is correct. Apricots are low in potassium; therefore, it is a suitable snack of the client on a potassium-restricted diet. Raisins, oranges, and bananas are all good sources of potassium; therefore, answers A, B, and C are incorrect.

2.      Answer B is correct. No special preparation is needed for the blood test for H. pylori. Answer A is incorrect because the client is not NPO before the test. Answer C is incorrect because it refers to preparation for the breath test. Answer D is incorrect because glucose is not administered before the test.

3.      Answer B is correct. Oral potassium supplements should be given in at least 4oz. of juice or other liquid, to prevent gastric upset and to disguise the unpleasant taste. Answers A, C, and D are incorrect because they cause gastric upset.

4.      Answer D is correct. Fresh specimens are essential for accurate diagnosis of CMV. Answer A is incorrect because cultures of urine, sputum, and oral swab are preferred. Answer B is incorrect because pregnant caregivers should not be assigned to care for clients with suspected or known infection with CMV. Answer C is incorrect because a convalescent culture is obtained 2–4 weeks after diagnosis.

5.      Answer D is correct. The client should receive pain medication 30 minutes before the application of Sulfamylon. Answer A is incorrect because it refers to silver nitrate. Answer B is incorrect because it refers to Silvadene. Answer C is incorrect because it refers to Betadine.

6.      Answer D is correct. Gingival hyperplasia is a side effect of Dilantin; therefore, the nurse should provide oral hygiene and gum care every shift. Answers A, B, and C do not apply to the medication; therefore, they are incorrect.

7.      Answer C is correct. Zofran is given before chemotherapy to prevent nausea. Answers A, B, and D are not associated with the medication; therefore, they are incorrect.

8.      Answer A is correct. When administering ear drops to a child under 3 years of age, the nurse should pull the ear down and back to straighten the ear canal. Answers B and D are incorrect positions for administering ear drops. Answer C is used for administering ear drops to an adult client.

9.      Answer C is correct. The nurse should carefully monitor the client taking Thorazine for signs of infection that can quickly become overwhelming. Answers A, B, and C are incorrect because they are expected side effects of the medication.

10.  Answer A is correct. Iron is better absorbed when taken with ascorbic acid. Orange juice is an excellent source of ascorbic acid. Answer B is incorrect because the medication should be taken with orange juice or tomato juice. Answer C is incorrect because iron should not be taken with milk because it interferes with absorption. Answer D is incorrect because apple juice does not contain high amounts of ascorbic acid.

11.  Answer B is correct. Burn injury of the arm (9%), chest (9%), and head (9%) accounts for burns covering 27% of the total body surface area. Answers A, C, and D are incorrect percentages.

12.  Answer B is correct. With standing orders, the nurse can administer oxygen at 6L per minute via mask. Answer A is incorrect because the amount is too low to help the client with chest pain and shortness of breath. Answers C and D have oxygen levels requiring a doctor’s order.

13.  Answer A is correct. Stool from the ileostomy contains digestive enzymes that can cause severe skin breakdown. Answer B contains contradictory information; therefore, it is incorrect. Answers C and D contain inaccurate statements; therefore, they are incorrect.

14.  Answer C is correct. Tinnitus is a sign of aspirin toxicity. Answers A, B, and D are not related to aspirin toxicity; therefore, they are incorrect.

15.  Answer B is correct. The client with delirium tremens has an increased risk for seizures; therefore, the nurse should provide seizure precautions. Answer A is not a priority in the client’s care; therefore, it is incorrect. Answer C is incorrect because the client should be kept in a dimly lit, not dark, room. Answer D is incorrect because thiamine and multivitamins are given to prevent Wernicke’s encephalopathy, not delirium tremens.

16.  Answer D is correct. Steak, baked potato, and tossed salad are lower in purine than the other choices. Liver, crab, and chicken are high in purine; therefore, answers A, B, and C are incorrect.

17.  Answer C is correct. Placing the newborn in a side-lying position helps the urine to drain from the exposed bladder. Answer A is incorrect because it would position the child on the exposed bladder. Answers B and D are incorrect because they would allow the urine to pool.

18.  Answer D is correct. Burping the baby frequently throughout the feeding will help prevent gastric distention that contributes to esophageal reflux. Answers A and B are incorrect because they allow air to collect in the baby’s stomach, which contributes to reflux. Answer C is incorrect because the baby should be placed side-lying with the head elevated, to prevent aspiration.

19.  Answer B is correct. Growth plates located in the epiphysis can be damaged by epiphyseal fractures. Answers A, B, and C are untrue statements; therefore, they are incorrect.

20.  Answer A is correct. The nurse should replace the aspirate and administer the feeding because the amount aspirated was less than 50mL. Answers B and C are incorrect because the aspirate should not be discarded. Answer D is incorrect because the feeding should not be withheld.

21.  Answer B is correct. The nurse should administer two capsules. Answers A, C, and D contain inaccurate amounts; therefore, they are incorrect.

22.  Answer B is correct. The normal specific gravity is 1.010 to 1. Answers A, C, and D are inaccurate statements; therefore, they are incorrect.

23.  Answer A is correct. To prevent spasms of the sphincter of Oddi, the client with pancreatitis should receive nonopiate analgesics for pain. Answer B is incorrect because the client with pancreatitis might be prone to bleed; therefore, Toradol is not a drug of choice for pain control. Morphine and codeine, opiate analgesics, are contraindicated for the client with pancreatitis; therefore, answers C and D are incorrect.

24.  Answer D is correct. Overuse of magnesium-containing antacids results in diarrhea. Antacids containing calcium and aluminum cause constipation; therefore, answer A is incorrect. Answers B and C are not associated with the use of magnesium antacids; therefore, they are incorrect.

25.  Answer B is correct. The head circumference of the normal newborn is approximately 33cm, while the chest circumference is 31cm. Answer A is incorrect because the head and chest are not the same circumference. Answer C is incorrect because the head is larger in circumference than the chest. Answer D is incorrect because the difference in head circumference and chest circumference is too great