Instant download Test Bank For Roach’s Introductory Clinical Pharmacology, 10th Edition by Susan M. Ford MN RN CNE , Sally S. Roach pdf docx epub after payment.
SAMPLE
Chapter 6
| 1. | After teaching a group of nursing students about sulfonamides, the instructor determines that the teaching was successful when the students identify which of the following as an example of a sulfonamide antibiotic? Select all that apply. | |
| A) | Amoxicillin (Amoxil) | |
| B) | Ciprofloxacin (Cipro) | |
| C) | Sulfamethoxazole/trimethoprim (Bactrim) | |
| D) | Clarithromycin (Biaxin) | |
| E) | Silver sulfadiazine (Silvadene) | |
| Ans: | C, E | |
| Feedback: | ||
| Silver sulfadiazine (Silvadene) and sulfamethoxazole/trimethoprim (Bactrim) are sulfonamide antibiotics. Amoxicillin is an aminopenicillin. Ciprofloxacin is classified as a fluoroquinolone. Clarithromycin is a macrolide. | ||
| 2. | A group of nursing students are reviewing information about sulfonamides. Which of the following if stated by the students indicate understanding of this drug class? Select all that apply. | |
| A) | Sulfonamides are well absorbed when given orally. | |
| B) | Sulfonamides are poorly absorbed when given orally. | |
| C) | Sulfonamides treat only gram-positive infections. | |
| D) | Sulfonamides treat only gram-negative infections. | |
| E) | Sulfonamides are excreted by the kidneys. | |
| Ans: | A, E | |
| Feedback: | ||
| Sulfonamides are well absorbed by the GI tract and are excreted by the kidneys. Sulfonamides treat both gram-positive and gram-negative infections. | ||
| 3. | When reviewing the medical records of several clients who are prescribed sulfonamide therapy, the nurse would expect laboratory findings related to which bacteria? Select all that apply. | |
| A) | Pseudomonas aeruginosa | |
| B) | Escherichia coli | |
| C) | Klebsiella pneumoniae | |
| D) | Streptococcus pyogenes | |
| E) | Staphylococcus aureus | |
| Ans: | B, C, E | |
| Feedback: | ||
| Sulfonamides are often used to control infections caused by both gram-negative and gram-positive bacteria, such as Escherichia coli, Klebsiella pneumoniae, and Staphylococcus aureus. Typically, sulfonamides are not used to treat infections caused by Pseudomonas aeruginosa or Streptococcus pyogenes. | ||
| 4. | Sulfonamides are commonly used to treat which of the following types of infections?
Select all that apply. | |
| A) | Ulcerative colitis | |
| B) | Urinary tract infection | |
| C) | Acute otitis media | |
| D) | Upper respiratory tract infection | |
| E) | Osteomyelitis | |
| Ans: | A, B, C | |
| Feedback: | ||
| Sulfonamides are often used to treat ulcerative colitis, urinary tract infection, and acute otitis media. | ||
| 5. | A client is taking trimethoprim and sulfamethoxazole (Bactrim DS) one tablet twice daily for 14 days. Which of the following would the nurse include when teaching the client about possible adverse reactions? Select all that apply. | |
| A) | Muscle pain | |
| B) | Blurred vision | |
| C) | Anorexia | |
| D) | Crystalluria | |
| E) | Photosensitivity | |
| Ans: | C, D, E | |
| Feedback: | ||
| Teaching should address potential adverse reactions that can occur while taking a sulfonamide. These adverse reactions include nausea, vomiting, anorexia, stomatitis, chills, fever, crystalluria, and photosensitivity. | ||
| 6. | The nurse suspects that a client who is taking a sulfonamide has leukopenia. Which assessment findings would support this suspicion? Select all that apply. | |
| A) | Sore throat | |
| B) | Cough | |
| C) | Nausea | |
| D) | Photosensitivity | |
| E) | Bruising | |
| Ans: | A, B | |
| Feedback: | ||
| Antibiotics including sulfonamides can lead to leukopenia, which would be manifested by fever, sore throat, or cough. Thrombocytopenia is also possible and would be manifested by easy bruising or unusual bleeding from minor to moderate trauma. Nausea and photosensitivity are adverse reactions to sulfonamides. | ||
| 7. | A nurse is reviewing the laboratory test results of a client receiving sulfasalazine therapy for ulcerative colitis. Which of the following would the nurse anticipate finding? Select all that apply. | |
| A) | Pancytopenia | |
| B) | Leukopenia | |
| C) | Thrombocytopenia | |
| D) | Aplastic anemia | |
| E) | Iron deficiency anemia | |
| Ans: | B, C, D | |
| Feedback: | ||
| Leukopenia, thrombocytopenia, and aplastic anemia are hematologic changes that may occur during prolonged sulfonamide therapy, such as during ulcerative colitis treatment with sulfasalazine. | ||
| 8. | Which of the following represent contraindications to treatment with a sulfonamide? Select all that apply. | |
| A) | Children younger than 6 years of age | |
| B) | Adults older than 65 years of age | |
| C) | Lactating females | |
| D) | Clients with group A beta-hemolytic streptococci infections | |
| E) | Women in the second trimester of pregnancy | |
| Ans: | C, D | |
| Feedback: | ||
| The sulfonamides are contraindicated in clients with hypersensitivity to the sulfonamides, during lactation, in children younger than 2 years of age, near the end of pregnancy, and for infections caused by group A beta-hemolytic streptococci. | ||
| 9. | The nurse is providing care to a client with diabetes who is receiving sulfonamides. The nurse counsels the client about the increased risk of hypoglycemia, especially if the client is taking which of the following medications? Select all that apply. | |
| A) | Tolbutamide (Orinase) | |
| B) | Lisinopril (Prinivil) | |
| C) | Simvastatin (Zocor) | |
| D) | Losartan (Cozaar) | |
| E) | Chlorpropamide (Diabinese) | |
| Ans: | A, E | |
| Feedback: | ||
| Sulfonamides may inhibit the hepatic metabolism of the oral hypoglycemic drugs tolbutamide (Orinase) and chlorpropamide (Diabinese). Elderly clients may be especially sensitive to this reaction. Lisinopril, simvastatin, and losartan are used for cardiac conditions. | ||
| 10. | A client is diagnosed with a urinary tract infection. When obtaining the client’s drug history, the client reports using an herbal product in the past to prevent and relieve the symptoms. Which of the following would the client most likely identify? | |
| A) | Ginger | |
| B) | Feverfew | |
| C) | Saw palmetto | |
| D) | Cranberry | |
| Ans: | D | |
| Feedback: | ||
| Cranberries and cranberry juice are commonly used remedies for preventing and relieving symptoms of UTIs. However, if an individual suspects a UTI, medical attention is necessary. | ||
| 11. | A nurse is working in an ambulatory care setting that involves seeing clients with infections that require treatment. Which of the following would be important for the nurse to assess in these clients? Select all that apply. | |
| A) | Client’s use of self-remedies | |
| B) | Review of lab results | |
| C) | Vital signs | |
| D) | Client’s symptoms | |
| E) | Client’s general appearance | |
| Ans: | A, B, C, D, E | |
| Feedback: | ||
| When assessing a client who may have an infection, the nurse should gather information about the client’s general appearance; vital signs; symptoms, including the length of time the client has been experiencing them; and any self-remedies used. In addition, the nurse should review the results of any laboratory and diagnostic tests. | ||
| 12. | A client with a fever is ordered to receive sulfonamide therapy for an infection. The nurse needs to evaluate the client for which of the following during the course of therapy? Select all that apply. | |
| A) | Response to drug therapy | |
| B) | Elevated blood glucose levels | |
| C) | Mental status changes | |
| D) | Occurrence of adverse reactions | |
| E) | Decrease in temperature | |
| Ans: | A, D, E | |
| Feedback: | ||
| During the course of therapy, the nurse evaluates the client at periodic intervals for response to the drug, including relief of symptoms and decrease in temperature, as well as the occurrence of any adverse reactions. | ||
| 13. | The nurse is preparing to administer a prescribed sulfonamide. Which of the following would the nurse do? Select all that apply. | |
| A) | Have the client sit up to take the drug | |
| B) | Give the prescribed drug on an empty stomach | |
| C) | Be sure to administer the drug immediately after a meal | |
| D) | Have the client decrease his fluid intake | |
| E) | Encourage the client to drink additional fluids | |
| Ans: | A, B, E | |
| Feedback: | ||
| Oral medication should be administered to clients only when they are in an upright or sitting position. Sulfonamides should be administered on an empty stomach if tolerated with 8 ounces of water. Increased fluid intake is encouraged to prevent crystalluria. | ||
| 14. | A nurse is preparing a plan of care for an older adult client who is receiving sulfonamide therapy. Which of the following would the nurse include in the plan of care to reduce the likelihood of causing renal damage? Select all that apply. | |
| A) | Administer sulfonamides once daily. | |
| B) | Increase fluid intake up to 2000 mL if tolerated. | |
| C) | Use sulfonamides cautiously in clients with renal impairment. | |
| D) | Administer the dose intravenously instead of orally. | |
| E) | Ask the prescriber to change the medication ordered. | |
| Ans: | B, C | |
| Feedback: | ||
| Older adults experience a decline in renal function with aging. Therefore, sulfonamides must be used cautiously in older clients. In addition, increasing fluid intake up to 2000 mL daily can decrease the likelihood of causing renal damage in older clients. The drug is administered throughout the day, not as a once-daily dose. Sulfonamides can affect renal function regardless of the route administered. Asking the prescriber to change the medication ordered may be appropriate but is not necessary as long as the drug is administered cautiously and the client is monitored closely. | ||
| 15. | A nurse is applying silver sulfadiazine to a client’s burn. Which of the following would be important for the nurse to do? Select all that apply. | |
| A) | Clean and remove debris from the burned area before application | |
| B) | Allow air drafts over the burn area to speed the healing process | |
| C) | Apply a 1/2-inch-thick layer of cream to the burn | |
| D) | Wear sterile gloves when applying the cream to the burn | |
| E) | Warn client of burning sensation during and shortly following application | |
| Ans: | A, D, E | |
| Feedback: | ||
| When applying silver sulfadiazine cream to a burn, clean and remove debris from the burned area, apply cream while wearing sterile gloves, apply a 1/16-inch-thick layer to the area, keep the client away from air drafts to decrease pain, and warn the client that he or she may experience a burning sensation during and shortly following cream application. | ||
| 16. | A client is being discharged with a prescription for sulfasalazine. Which of the following would the nurse include in the discharge teaching plan? Select all that apply. | |
| A) | Take the drug 1 hour before or 2 hours after meals. | |
| B) | Use protective sunscreen or cover exposed areas when going outside. | |
| C) | Finish the entire course of sulfonamide even if you begin feeling better. | |
| D) | Decrease fluid intake to prevent increased excretion of the drug. | |
| E) | Keep all follow-up appointments. | |
| Ans: | B, C, E | |
| Feedback: | ||
| The nurse should teach the client to take sulfasalazine with food or immediately after a meal, to use sunscreen or cover exposed areas to prevent severe sunburn, to increase fluid intake to prevent renal calculi, to finish the entire course of drug even if the symptoms go away, and to keep all follow-up appointments. | ||
| 17. | A female client receiving methotrexate for the treatment of rheumatoid arthritis is given a prescription for trimethoprim and sulfamethoxazole (Bactrim DS). The client returns to the physician’s office feeling worse than before. She now has a cough and unusual bruising on the extremities. The physician orders a complete blood count and a complete metabolic profile. Which test results would the nurse expect to find? Select all that apply. | |
| A) | Increased hemoglobin | |
| B) | Decreased number of white blood cells | |
| C) | Increased number of red blood cells | |
| D) | Decreased number of platelets | |
| E) | All values should be within normal limits | |
| Ans: | B, D | |
| Feedback: | ||
| The concomitant use of methotrexate and sulfonamides, like trimethoprim and sulfamethoxazole (Bactrim DS), can result in increased bone marrow suppression, leading to decreased amounts of white blood cells, red blood cells, and platelets in the blood. | ||
| 18. | A client is prescribed sulfadiazine one tablet twice daily for 10 days. When reviewing the client’s history, the nurse notes that the client is also taking warfarin. The nurse would be alert for which of the following? | |
| A) | Prolonged clotting times | |
| B) | Increased risk of infection | |
| C) | Decreased antibiotic effect | |
| D) | Decreased white blood cell count | |
| Ans: | A | |
| Feedback: | ||
| When warfarin and sulfonamides are given concomitantly, an increase in action of the anticoagulant is seen, leading to an increase in clotting time, such as PT/INR, and an increased risk of bleeding. An increased risk of infection and a decrease in the white blood cell count would occur when a sulfonamide is given with methotrexate. The combination of warfarin and sulfonamide does not impact the effect of the antibiotic. | ||
| 19. | A nurse is to administer sulfasalazine to a client with ulcerative colitis. Which of the following interventions would be most important while caring for this client? | |
| A) | Stop dosage if skin turns orange-yellow color. | |
| B) | Regularly inspect client’s stool samples. | |
| C) | Give the drug on an empty stomach. | |
| D) | Administer cranberry juice to the client. | |
| Ans: | B | |
| Feedback: | ||
| While providing care to a client receiving sulfasalazine therapy for ulcerative colitis, the nurse should regularly inspect all stool samples and record their number and appearance. Yellow skin or urine in clients receiving sulfasalazine is normal, and the nurse should not stop the dosage. Sulfasalazine is administered with meals or immediately afterward, not on an empty stomach. Administering cranberry juice is helpful for clients with urinary tract infections, but not for clients with ulcerative colitis. | ||
| 20. | A nurse is caring for a client with a urinary tract infection. After administering a sandwich and a large glass of cranberry juice to a client, the nurse observes that the client has developed diarrhea. Which of the following is the most likely cause of the client’s condition? | |
| A) | Extremely large dosage of cranberry juice | |
| B) | Lack of activity or exercise | |
| C) | Occurrence of crystalluria | |
| D) | Minimized food and fluid intake | |
| Ans: | A | |
| Feedback: | ||
| Clients may develop gastrointestinal distress such as diarrhea if they have consumed extremely large doses of cranberry juice. The recommended dose is 6 ounces of juice twice daily. Cranberry juice on an empty stomach or immediately after dosage will not lead to diarrhea if taken in the recommended amount. Minimized food and fluid intake or lack of exercise does not increase the chances of diarrhea. Crystalluria does not cause diarrhea. | ||
| 21. | A nurse is to administer mafenide to a client. The nurse would be alert for which of the following? | |
| A) | Rash, itching, or other allergic reactions | |
| B) | Crystals in the urine sample | |
| C) | Inflammation of the mouth | |
| D) | Loss of appetite | |
| Ans: | A | |
| Feedback: | ||
| The nurse should assess for allergic reactions such as rash, itching, edema, and urticaria when administering mafenide. Topical sulfonamides like mafenide do not cause crystalluria, inflammation of the mouth, or loss of appetite. | ||
| 22. | After administering sulfonamides to a client, the nurse observes that he has developed a fever, cough, and muscular aches. The nurse also observes that the client has developed lesions in the form of red wheals on the neck and the mouth. The nurse interprets these findings as indicating which of the following? | |
| A) | Stevens-Johnson syndrome (SJS) | |
| B) | Anaphylactic shock | |
| C) | Thrombocytopenia | |
| D) | Leukopenia | |
| Ans: | A | |
| Feedback: | ||
| Clients with Stevens-Johnson syndrome (SJS) may complain of fever, cough, muscular aches and pains, and headache. Additional signs include lesions on the neck and mouth. Lesions are not symptoms of leukopenia or anaphylactic shock. A client with thrombocytopenia develops bruises on the skin but not lesions in the form of red wheals. | ||
| 23. | The health care professional has recommended sulfonamide therapy for a client. While obtaining the client’s medical history, the nurse discovers that he is taking oral anticoagulants. Which of the following are the possible effects of combining sulfonamide therapy with oral anticoagulants? | |
| A) | Increased action of the anticoagulant | |
| B) | Increased risk of anaphylactic shock | |
| C) | Rendering of sulfonamide therapy ineffective | |
| D) | Development of leukopenia | |
| Ans: | A | |
| Feedback: | ||
| Taking sulfonamide drugs when the client is already taking oral anticoagulants may result in increased action of the anticoagulants. Anaphylactic shock and leukopenia are some of the adverse reactions of sulfonamides but are not associated with mixing sulfonamides and anticoagulants. Oral anticoagulants do not decrease the effectiveness of sulfonamides. | ||
| 24. | A client who is on sulfonamide therapy is about to be discharged. Which of the following precautions should the nurse instruct the client to follow to reduce the effects of photosensitivity? | |
| A) | Wear protective clothing and sunscreen when outside. | |
| B) | Increase fluid intake. | |
| C) | Avoid lights while indoors. | |
| D) | Wear protective footwear. | |
| Ans: | A | |
| Feedback: | ||
| The nurse should encourage a client to wear protective clothing while going out in the sun to reduce the effect of photosensitivity. While increasing the fluid intake is recommended, it does not help combat the effects of photosensitivity. There is no need to avoid lights while indoors; the skin becomes sensitive only to harsh sunlight during sulfonamide therapy. Wearing protective footwear may protect the feet from injury, but it will not protect the skin from the harmful effects of photosensitivity. | ||
| 25. | A 60-year-old client who is on sulfonamide therapy has impaired urinary elimination. She does not want to increase her oral fluid intake because of fear of incontinence. Which of the following nursing interventions would be most appropriate? | |
| A) | Inform the client that there is no need to increase fluid intake. | |
| B) | Inform the client that increasing fluid intake will not result in incontinence. | |
| C) | Teach the client the times to take fluids to maintain continence. | |
| D) | Increase fluid intake by 1000 mL instead of 2000 mL to avoid incontinence. | |
| Ans: | C | |
| Feedback: | ||
| The nurse’s responsibility is to help the client overcome the fear of incontinence and to teach her when to take fluids to maintain continence. Instead of telling the client that increasing fluid intake has no effect on continence, the nurse should focus on helping the client with her problems of incontinence. The nurse should instruct the client to increase the fluid intake by at least 2000 mL, instead of only 1000 mL; however, this will not help control incontinence. | ||
| 26. | A nurse is caring for a client who is being administered sulfasalazine. Which of the following instructions should the nurse include to ensure that the client gets the full benefits of the treatment? | |
| A) | Take dosage while eating or immediately after eating. | |
| B) | Increase food intake for the duration of sulfonamide therapy. | |
| C) | Take the drug with a full glass of milk instead of water. | |
| D) | Drink at least two to three 8-ounce glasses of fluid every day. | |
| Ans: | A | |
| Feedback: | ||
| The nurse should administer sulfasalazine with food or immediately afterward. Increasing the food intake during sulfonamide therapy is not necessary, as long as a proper diet is maintained and the physician’s recommendations are followed. Two to three 8-ounce glasses of fluid is not enough; the client should drink at least eight to ten 8-ounce glasses of fluid every day. All drugs should be taken with water and not milk, juice, or any other liquid, unless specifically instructed by the physician. | ||
| 27. | A client who is being discharged has been instructed to continue with sulfonamide therapy for a week. Which of the following points should the nurse include in the teaching plan to educate the client about the therapy? | |
| A) | Discontinue dosage if symptoms of infection disappear. | |
| B) | Take the drug a few minutes before a meal. | |
| C) | Take any off-the-shelf medication if fever occurs. | |
| D) | Ensure that all follow-up appointments are met. | |
| Ans: | D | |
| Feedback: | ||
| The nurse’s plan should include educating the client about the importance of keeping the follow-up appointments. The nurse should instruct the client to adhere to the dosage schedule and not discontinue it even if the symptoms of the infection have gone. The client should inform the primary health care provider if fever, skin rash, or nausea occurs during the therapy. The client should be instructed to take the drug on an empty stomach (at least 2 hours before or after a meal) and not just before a meal. | ||
| 28. | A nurse is caring for a client with burns. The client is prescribed topical silver sulfadiazine. The nurse would be alert for which of the following? | |
| A) | Facial edema | |
| B) | Skin necrosis | |
| C) | Headache | |
| D) | Rash | |
| Ans: | B | |
| Feedback: | ||
| Skin necrosis is an adverse effect of silver sulfadiazine that the nurse should be alert for. Facial edema and rash are adverse effects of mafenide, used for second- and third-degree burns. Headache is an adverse effect of sulfadiazine, used for urinary tract infection. | ||
| 29. | After teaching a group of nursing students about the action of sulfonamides, the instructor determines that the teaching was successful when the students state that the action of this class of drugs is primarily which of the following? | |
| A) | Bacteriostatic | |
| B) | Bactericidal | |
| C) | Promotor of folic acid activity | |
| D) | Bacterial cell metabolizer | |
| Ans: | A | |
| Feedback: | ||
| The sulfonamides are primarily bacteriostatic because of their ability to inhibit the activity of folic acid in bacterial cell metabolism. They are not bactericidal. | ||
| 30. | When developing the plan of care for a client receiving sulfonamides for treatment of a urinary tract infection, the nurse identifies actions for encouraging fluid intake and monitoring intake and output based on which nursing diagnosis? | |
| A) | Risk for Fluid Imbalance | |
| B) | Impaired Urinary Elimination | |
| C) | Risk for Ineffective Renal Perfusion | |
| D) | Stress Incontinence | |
| Ans: | B | |
| Feedback: | ||
| A client with a urinary tract infection already is experiencing an alteration in urinary elimination. Because one adverse effect of the sulfonamide drugs is altered elimination patterns, it is important to help the client maintain adequate fluid intake and output. The nurse would encourage clients to increase fluid intake to 2000 mL or more per day to prevent crystalluria and stones (calculi) forming in the genitourinary tract, as well as to aid in removing microorganisms from the urinary tract. It is important to measure and record the client’s intake and output every 8 hours and notify the primary health care provider if the urinary output decreases or the client fails to increase his or her oral intake. If the client is unable to maintain adequate intake, then he or she would be at risk for fluid imbalance. If renal injury would occur, then the client would be at risk for ineffective renal perfusion. Bladder training would be an appropriate intervention to address stress incontinence. | ||
| 31. | After teaching the client about taking his prescribed sulfonamide therapy, the nurse determines that the client needs additional teaching when he states which of the following? | |
| A) | “I should take the drug with a large glass of water each ; | |
| B) | “I can take the drug at different times of the day each ; | |
| C) | “I have to finish the full prescription for the ; | |
| D) | “I should call my doctor if my symptoms seem to get ; | |
| Ans: | B | |
| Feedback: | ||
| It is important that the client takes the drug at the scheduled intervals consistently throughout the course of the therapy because a certain amount of the drug must be in the body at all times for the infection to be controlled. The client is correct in taking the drug with a large glass of water each time, finishing the full prescription, and calling the doctor if symptoms get worse. | ||
| 32. | A client develops a cough and fever and laboratory test results reveal leukopenia after the client receives sulfonamide therapy. When developing the client’s plan of care, the nurse would identify which nursing diagnosis? | |
| A) | Impaired Urinary Elimination | |
| B) | Impaired Skin Integrity | |
| C) | Risk for Secondary Infection | |
| D) | Deficient Knowledge | |
| Ans: | C | |
| Feedback: | ||
| Fever and leukopenia suggest an infection, which can occur secondarily with sulfonamide therapy. Therefore, Risk for Infection would be the most appropriate nursing diagnosis. Impaired Urinary Elimination would be appropriate if the client was experiencing changes in urinary output. Impaired Skin Integrity would be appropriate if the client developed a rash or hypersensitivity reaction. Deficient Knowledge would be appropriate if the client lacked understanding of the drug therapy, which is not evident in this situation. | ||
| 33. | A client asks the nurse why she needs to increase her fluid intake while taking sulfonamides. Which response by the nurse would be most appropriate? | |
| A) | “The fluids will help to decrease your risk for kidney ; | |
| B) | “You need fluids so that you won’t develop a reaction in the ; | |
| C) | “Fluids prevent you from getting ; | |
| D) | “You need fluids to keep your blood count from dropping too ; | |
| Ans: | A | |
| Feedback: | ||
| With sulfonamides, the client is at risk for crystalluria and kidney stones. Increasing fluid intake helps to reduce the risk for their development. Fluids will have no effect on the development of photosensitivity or maintaining blood counts. Although fluids help to minimize the risk for dehydration, this is not the reason for increasing fluid intake with sulfonamide therapy. | ||
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