TEST 3 - LEARNING ACTIVITY QUESTIONS Flashcards

1
Q

Your client is experiencing stomatitis and is taking cisplatin. What kinds of food would you encourage her to avoid? Explain your answer.

A

Foods high in fibre, foods that are spicy, foods that contain citric acid, and foods of extreme temperatures need to be avoided to prevent increased discomfort or irritation of the oral and gastrointestinal tract mucosa.

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2
Q

The alkylating drug mechlorethamine causes ___________________, meaning sloughing of tissue with severe tissue damage upon intravenous infiltration.

The antidote for this alkylating agent is 1.6 mL 25 percent _____________ ____________ diluted with 8.4 mL sterile water and injected at the site of infiltration.

Often the intravenous needle, in this type of situation, is recommended to ____________ in the site to allow the use of any type of antidote to be injected directly into the site and help reverse the effects and minimize tissue damage.

A

extravasation
sodium thiosulphate
remain

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3
Q

What is a cytotoxic antibiotic?

A

An antibiotic that is used as chemotherapy against cancer; it is not used to treat infections because the side effects are too toxic for the treatment of infections.

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4
Q

What type of an anti-emetic is ondansetron?

A

Ondansetron is an antiserotonergic anti-emetic. It is indicated for the nausea and vomiting associated with chemotherapy. It is sometimes used with post-operative nausea.

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5
Q

What is the difference between cell cycle specific and cell cycle non-specific?

A

CCS: antineoplastic drugs that are cytotoxic during a specific cell cycle phase. CCNS: antineoplastic drugs that are cytotoxic in any phase of the cellular growth cycle.

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6
Q

Which of the following best describes the term nadir?
A. The client’s tolerance to the chemotherapy’s bone marrow suppressant effect
B. The maximum dose for a chemotherapy agent in reference to bone marrow suppression
C. The average number of days it takes the bone marrow to recover from a dose of chemotherapy
D. The average number of days it takes for the chemotherapy to have its peak effect on the bone marrow

A

D
Nadir refers to the average number of days it takes for a chemotherapeutic agent to have its peak effect on the bone marrow, which would coincide with the client’s lowest blood count and highest risk for infection and/or bleeding.

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7
Q
Prednisone added to a chemotherapeutic regimen contributes to all of the following except which of the following?
A.	Increase in blood sugar
B.	Decrease in bleeding tendency
C.	Fluid retention and risk of infection
D.	Sense of well-being and euphoria
A

B
Prednisone is added to the chemotherapeutic regimen to increase the client’s sense of well-being. It can also increase the blood glucose levels, cause fluid retention, and increase the risk of infection. It does not help decrease the risk of bleeding.

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8
Q

Combinations of chemotherapeutic agents are frequently used for all of the following purposes except which of the following?
A. Preventing drug resistance
B. Providing a synergistic action
C. Decreasing cost of treatment
D. Decreasing the severity of adverse effects

A

C
Administering a combination of antineoplastic agents allows for smaller doses of each, which can minimize the severity of side effects and help prevent drug resistance. Additionally, there is a synergistic action between some of the medications. Decreasing cost is not a benefit of combination therapy.

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9
Q
Which of the following is the rationale for the nurse teaching a client who is receiving cyclophosphamide to drink plenty of water/fluids? To:
A.	Prevent renal failure
B.	Prevent hemorrhagic cystitis
C.	Prevent liver dysfunction
D.	Increase the red blood cell count
A

B
Clients receiving cyclophosphamide should drink at least 2 to 3 L of fluid before, during, and after administration to prevent hemorrhagic cystitis.

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10
Q
The nurse would anticipate administering which of the following medications to clients receiving high-dose methotrexate?
A.	cisplatin
B.	bleomycin
C.	leucovorin
D.	dactinomycin
A

C
Leucovorin calcium is given within the first 24 to 42 hours of starting methotrexate to block the systemic toxic effect of high-dose methotrexate. It is a form of folic acid that does not require dihydrofolate reductase to produce folic acid. Therefore it is used to prevent or treat toxicity induced by methotrexate, a folic acid antagonist. All the other options are chemotherapeutic agents, which are not specifically associated with methotrexate.

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11
Q

Which of the following teaching tips is required for clients experiencing the adverse effect of nausea and vomiting associated with antineoplastic therapy?
A. To avoid eating any food during chemotherapy
B. That there is nothing that can be done for this effect and it will pass with time
C. To try to maintain hydration and nutrition, which are important during treatment
D. To use antacids to relieve the irritation to the stomach, which should stop the nausea

A

C
It is important for clients undergoing chemotherapy to maintain adequate nutrition and hydration. Several anti-emetic drugs are available that are very successful in controlling this side effect.

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12
Q
When teaching a client receiving paclitaxel, the nurse should prepare the client for which of the following?
A.	Vertigo
B.	Weight gain
C.	Arthralgias
D.	Hypertension
A

C

Myalgias and arthralgias are a common side effect of paclitaxel that the client should be prepared to expect.

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13
Q
Which of the following is a major dose-limiting side effect of doxorubicin?
A.	Hepatoxicity
B.	Nephrotoxicity
C.	Cardiomyopathy
D.	Hemorrhagic cystitis
A

C

Clients receiving doxorubicin need to be monitored for cardiac toxicity. There is a lifetime limited dose that clients are allowed to receive to minimize the occurrence of cardiomyopathy.

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14
Q
Which of the following laboratory results would cause the nurse to question administration of cyclophosphamide?
A.	Hemoglobin of 150 g/L
B.	Platelet count of 450 x 109/L
C.	Red cell count of 8 x 1012/L
D.	White blood cell count of 8 x 108/L
A

C
Cyclophosphamide causes bone marrow suppression, which is evidenced by a decrease in red blood cells, white blood cells, and platelets. A thrombocyte count of 8000 is significantly lower than normal. All the other options are within normal limits.

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15
Q
20.	The nurse would suspect which type of cancer in a client receiving tamoxifen?
A.	Lung cancer
B.	Renal cancer
C.	Breast cancer
D.	Colon cancer
A

C
Tamoxifen is an antiestrogen drug useful in treating malignancies that require estrogen for growth, such as breast cancer.

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16
Q

Explain the rationale for not taking dairy products, iron, or calcium with tetracycline. What would be recommended if these products are not taken out of the diet?

A

Milk, calcium, iron, and cheeses chelate or bind up the tetracycline, resulting in decreased levels of tetracycline. Tetracycline should be taken 2 hours before or after eating the foods listed above to help alleviate this problem.

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17
Q

Ms. S. is taking an aminoglycoside for the treatment of a recurrent UTI. What conditions should be assessed for or laboratory studies performed before the initiation of therapy?

A

Aminoglycosides are nephrotoxic and ototoxic. It is important to assess renal functioning prior to therapy because these antibiotics may worsen renal dysfunction. A hearing assessment is also important before initiation of therapy because vestibular function may be impaired as well. BUN, creatinine clearance, serum creatinine, and audiometric testing should all be assessed, when indicated.

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18
Q

What symptoms would alert the nurse to the fact that a client is suffering form a superinfection or overgrowth of normal flora stemming from the use of tetracycline?

A

The client suffering from an overgrowth of normal flora because of antibiotic use may encounter the following: fever, pain, swelling, diarrhea, changes in symptoms, perineal itching, vaginal discharge, and stomatitis.

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19
Q

What is considered therapeutic response to antituberculous drugs?

A

A therapeutic response would include a decrease in symptoms such as cough and sputum production, an afebrile (no fever) state, and improved chest x-ray and negative responses to other TB-related testing measures.

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20
Q

Is there any concern for the female taking oral contraceptives while taking rifampin? Explain your answer.

A

Yes. There are concerns regarding the drug interaction between these two agents because oral contraceptives and their effectiveness are impaired by rifampin. In this scenario, the client needs to be counseled to use other forms of contraception during treatment with rifampin. Always advocate for the prevention of sexually transmitted diseases among sexually active individuals by encouraging condom use.

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21
Q

What parameters should be assessed while a client is taking antituberculous drugs and why?

A

Liver function studies should be monitored because INH (isoniazid) and rifampin may impair the functioning of the liver. Monitoring the liver function tests would help prevent possible problems.

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22
Q

What Drug Am I? The first anti-HIV medication.

A

zidovudine

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23
Q

What Drug Am I? This drug is the one most frequently used to treat CMV infections.

A

ganciclovir

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24
Q

What Drug Am I? A protease inhibitor that may cause nephrolithiasis (kidney stones) in some clients.

A

indinavir

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25
Q

What Drug Am I? One of the earliest antiviral drugs, active only against influenza A viruses.

A

amantadine

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26
Q

What Drug Am I? One of the newer antiviral agents, in the neuraminidase inhibitor class, used for both prophylaxis and treatment of type A and type B influenza viruses.

A

oseltamivir

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27
Q

What Drug Am I? The newest medication in the newest class of antiretroviral drug, fusion inhibitors.

A

enfuvirtide

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28
Q

What Drug Am I? The drug of choice for initial and recurrent episodes of HSV 1 and 2 as well as the varicella-zoster virus (VZV), which causes chicken pox and shingles.

A

acyclovir

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29
Q

What Drug Am I? The inhaled form of this drug is used primarily in hospitalized infants for treatment of severe lower respiratory tract infections caused by RSV.

A

ribavirin

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30
Q

Sulphonamides are associated with some significant dermatological side effects. List two of these.

A

There are several significant dermatological side effects associated with sulphonamides: Stevens-Johnson syndrome, epidermal necrolysis, exfoliative dermatitis, and photosensitivity.

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31
Q

Beta-lactamase–inhibiting penicillins do not offer any broader spectrum of coverage than regular penicillins. True or false? Explain your answer.

A

False. Because the beta-lactamase inhibitor–type antibiotics are resistant to the enzymes produced by bacteria that will “eat up” the antibiotic and render it ineffective, you are able to treat a larger group of bacteria, for example, those that produce beta-lactamase.

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32
Q

Aminoglycosides have synergistic effects with three other antibiotics or groups of antibiotics. List them.

A

Synergism occurs with penicillins, cephalosporins, and vancomycin.

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33
Q

List two major toxicities of aminoglycosides.

A

Two major toxicities of aminoglycosides are nephrotoxicity and ototoxicity.

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34
Q

Ciprofloxacin has excellent biovailability. Why is this a significant property for this drug?

A

Ciprofloxacin has excellent biovailability. This is significant as it has the advantage of being an oral medication that can work as well as many intravenous antibiotics.

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35
Q

Is there an antibiotic that can treat vancomycin-resistant Enterococcus faecium (VREF), more commonly referred to as VRE?

A

Linezolid, from a new class of antibiotics known as oxazolidinones, is used to treat vancomycin-resistant Enterococcus faecium, more commonly referred to as VRE.

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36
Q

What drug interactions or other potential problems should the nurse be concerned about with the use of ciprofloxacin and other medications ordered for Mr. G. ?

A

Cipro should not be used with antacids, anticoagulants, cancer chemo drugs, or theophylline. Drug interactions could possibly lead to adverse and even severe reactions.

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37
Q

What parameters should be assessed and monitored with ciprofloxacin to determine whether the drug is working? Explain your answer.

A

Repeat chest x-rays in 48 hours (unless condition worsens), and monitor CBC and WBC in particular. Take vital signs at least every 4 hours and/or prn: BP (blood pressure will elevate >120/80 with infection), pulse (pulse rate increases >100 beats/min with fever), and respirations (rate will increase >20 breaths/minute with compromised lung status). Respirations may become labored and accompanied by a drop in oxygen levels and decreased to absent breath sounds with increased lung infection.

38
Q

If Mr. G’s signs and symptoms improve, could it mean that he just had a viral infection?

A

If it has been determined that the infection is bacterial, a different or adjunct drug(s) may be needed to fight the infection. If the client’s condition improves, the antibiotic is probably working.

39
Q

a) Amphotericin B is used in the treatment of ______________________.

A

Amphotericin B is used in the treatment of fungal infections and severe systemic mycoses.

40
Q

b) Fluconazole is only administered as vaginal cream or suppository. True or false? If false, correct the statement.

A

False. Fluconazole is administered in the form of oral tablets and by intravenous injections. Thus, it treats vaginal fungal infections systemically.

41
Q

c) Nystatin is used in the management of __________________________ and comes in _____________________________________dosage forms.

A

Nystatin is used in the management of both oral and vaginal fungal infections. It is also indicated in diaper rash due to candidiasis and used preventively against the candidiasis type of fungal infections. Nystatin comes in topical (vaginal) forms and in oral dosage forms to “swish and spit” and sometimes swish and swallow, depending on the physician’s order.

42
Q

d) Three side effects of systemic antifungals include ___________________, _______________, and ________________________.

A

Side effects of systemic antifungals include rash, nausea, vomiting, tachycardia, headache, gynecomastia, impotence, dizziness, bone marrow suppression, renal toxicity, and potassium loss.

43
Q

e) What are two major nursing considerations for antifungals?

A

Encourage the client to take the medication as instructed and for the length of time prescribed. Be sure that clients know not to miss any doses and to take the entire prescription as instructed. Abstinence or the use of condoms is encouraged to prevent further infections, at least until the fungal infection has been treated and has subsided. Clients should also be informed to notify their healthcare provider if symptoms persist or worsen or if fever occurs.

44
Q

f) Voriconazole (VFEND) is used in the treatment of ____________________.

A

Voriconazole is used in the treatment of invasive aspergillosis.

45
Q

What laboratory data and other assessment data should be considered before administering any of the systemic antifungals? Specify the data and identify the reason for their importance.

A

a) liver function studies such as alanine transaminase (ALT), aspartate transaminase (AST), bilirubin, and alkaline phosphatase
b) renal studies such as blood urea nitrogen (BUN), serum creatinine, and proteinuria
c) complete blood count (CBC) with differential
d) culture and sensitivity of the infected area or blood culture
e) history of penicillin allergy and systemic diseases, renal disease, or liver disease and associated symptomatology; and hemoglobin, hematocrit, red blood cells, platelets, and CBC.

46
Q
  1. One of your clients is to receive amphotericin B. However, the client’s liver and renal function is somewhat impaired. What laboratory studies are important to monitor, and why is the administration of amphotericin B problematic in this type of client?
A

It is important to monitor BUN, creatinine levels, electrolyte levels, and renal function studies (such as alkaline phosphatase, bilirubin levels, ALT, AST, creatine phosphokinase, lactate dehydrogenase, serum albumin, and protein) for determining liver function and renal function.

For clients with altered renal and liver function who are receiving amphotericin B, monitoring of the above-listed parameters is important because of the risk of acute liver failure and irreversible renal damage—results that could be life-threatening.

The physician should be alerted to any changes in renal and liver functioning, possibly to order either new medication or further organ function testing.

47
Q

What instructions should accompany a prescription of ketoconazole?

A

The client prescribed ketoconazole should be instructed not to take antacids or alkaline foods or products within 2 hours before or after dosing. This medication should not be taken with coffee, tea, or acidic fruit juices because of alteration in absorption. In addition, the client should take the medication with food to minimize gastrointestinal upset.

48
Q
  1. One of your clients has been taking the antiprotozoal agent atovaquone for P. carinii infections. What life-threatening reaction is related to the use of this drug? What should the nurse monitor for? Why is it also recommended that clients take atovaquone with meals (especially fatty foods)?
A

The life-threatening reaction is leukopenia. The nurse monitors signs and symptoms of this life-threatening reaction by taking complete blood cell and white blood cell counts, monitoring vital signs and temperature, and assessing bilateral lung sounds and sputum for culture and sensitivity. In addition, the client should be monitored for signs of infection, such as fever, sore throat, myalgia, cough, wheezing, and dyspnea.

Atovaquone should be taken with foods, preferably fatty foods, to increase plasma drug concentrations.

49
Q
  1. Your roommate is traveling to a country where there is high risk for malaria infection. She asks you what you think the physician will order for her, if anything at all. After researching this, what would you most likely tell her?
A

Prophylactic treatment will be recommended. It is usually started 2 weeks before the anticipated exposure and continues until 8 weeks after the client has left the area of risk. The client should take the medication with food to prevent gastrointestinal upset. The drug that will most likely be prescribed is chloroquine.

50
Q
  1. What should be the emphasis of client teaching to a 21 year old female who is traveling to a country with high risk of malaria exposure? Explain your answer.
A

Prophylactic treatment of malaria with chloroquine is usually ordered to begin 2 weeks before exposure and to continue for 8 weeks after the individual has left the area of risk. This length of time is needed to treat the person adequately. The risk for exposure continues even though the person has returned from overseas because of malaria’s incubation period. Medication should be taken with food to minimize gastrointestinal upset.

51
Q
  1. What is the main purpose of using antiseptics and disinfectants?
A

Antiseptics and disinfectants are used to reduce nosocomial infections.

52
Q
  1. Can disinfectants and antiseptics be used interchangeably? Why or why not?
A

No. Disinfectants are to be used only on non-living surfaces. If used otherwise, they may be toxic.

53
Q
  1. How would you know that a client is having a therapeutic response to an antiseptic?
A

When an antiseptic is working properly, a client’s wound will show signs of improved healing. Decreased redness, decreased inflammation, and a decrease in drainage from the area all indicate an improvement in the healing of the area.

54
Q

what is Chloroquine used for?

A

For malaria prophylaxis and treatment

55
Q

what is Primaquine used for?

A

For treatment of malaria; Plasmodium vivax prophylaxis in clients intolerant of chloroquine

56
Q

what is Mefloquine used for?

A

For malaria prophylaxis and treatment

57
Q
  1. List two teaching tips for antimalarials.
A

Clients should be educated to take the medication exactly as prescribed and that often the first dose is a “loading dose” or a larger dose that gets more of the medication in the bloodstream faster.

Prophylaxis of malaria should usually begin 1 to 2 weeks before the client is anticipating exposure to the malarious areas and up to 8 weeks after the person has left the area. Some of the medications may leave a strange odour to the urine or skin.

58
Q

List at least three of the drug interactions for antimalarials.

A

Some of the drug interactions for antimalarials include beta-blockers, calcium channel blockers, quinidine, quinine, divalproex, and valproic acid.

59
Q

Describe the main indications for pentamidine.

A

Pentamidine is an antiprotozoal agent that is used mainly for the management of Pneumocystis carinii pneumonia, although it is sometimes used for treating various other protozoal infections.

60
Q
  1. List two teaching tips for the anthelmintic agents.
A

a. Anthelmintics should be taken exactly as prescribed and the importance of adherence emphasized.
b. Clients should also be encouraged to notify the physician immediately if they experience fatigue, fever, pallor, anorexia, darkened urine, and abdominal, leg, or back pain, which could indicate a sudden decrease in red blood cells, hemoglobin, or white blood cells.

61
Q

Nursing Considerations when using: Biguanides

A

Used as a bactericidal skin-cleansing product, use as directed

62
Q

Nursing Considerations when using: Aldehydes

A
  • These agents are somewhat caustic, so use as directed (this is why they are generally used as disinfectants)
  • Wear gloves when using the product to avoid damage to the skin
63
Q

Nursing Considerations when using: halogens

A

• Check for allergies to seafood with iodine products prior to use

64
Q
  1. Differentiate between antiseptics and disinfectants.
A

A disinfectant is a chemical applied to non-living objects to kill micro-organisms. An antiseptic is a chemical that can be applied to the surfaces of both living tissue and non-living objects that inhibits the growth and reproduction of micro-organisms without necessarily killing them.

65
Q

Decongestants fall into three separate groups of nasal agents. What are they?

A

The three separate groups of nasal decongestants are adrenergics, anticholinergics, and topical corticosteroids.

66
Q
  1. An example of an H1 antagonist used as an antihistamine is ____________.
A

Examples of an H1 antagonist used as an antihistamine are diphenhydramine, chlorpheniramine, and fexofenadine.

67
Q
  1. List three side effects of H1 antagonist antihistamines.
A

Side effects of H1 antagonist antihistamines include sedation, constipation, dizziness, nervousness, seizures, anorexia, nausea, vertigo, visual disturbances, tinnitus, anemias, hepatitis, insomnia, and restlessness.

68
Q
  1. Guaifenesin is used as a(n) __________________, and dextromethorphan is a(n) ________________________.
A

Guaifenesin is used as an expectorant, and dextromethorphan is a non-opioid antitussive.

69
Q
  1. Clients taking antitussives should report any of the following symptoms to their physician:
A

Clients taking antitussives should report any of the following symptoms to their physician: a cough that lasts longer than a week, a persistent headache, fever, and/or a rash.

70
Q
  1. Name two advantages of peripherally acting antihistamines, such as loratadine or cetirizine.
A

Two advantages of peripherally acting antihistamines: they are non-sedating, and once-a-day dosing increases adherence.

71
Q
  1. Doses of xanthine derivatives may need to be reduced in older adult clients. True or false? Explain your answer.
A

Lower doses of xanthine derivatives in the older adult may be necessary initially and during therapy with close monitoring for adverse effects and toxicity (cardiovascular and central nervous system [CNS] stimulation).

72
Q
  1. Theophylline is classified as a _____________ _________________, whereas salbutamol and epinephrine are _____________________ ______________.
A

Theophylline is classified as a xanthine derivative, whereas salbutamol and epinephrine are beta-agonist bronchodilators.

73
Q
  1. Beta-agonists are contraindicated in clients with _________________ or _______________ disorders.
A

Beta-agonists are contraindicated in clients with CNS disorders such as seizures or any cardiovascular disorders, particularly tachydysrhythmias.

74
Q
  1. Antileukotriene agents reduce _______________ associated with asthma and are used for chronic/acute asthma.
A

Antileukotriene agents reduce inflammation associated with asthma and are used for chronic asthma.

75
Q
  1. This antileukotriene agent is approved by Health Canada for use in children 2 years of age and older: ________________
A

The antileukotriene agent montelukast is approved by Health Canada for use in children 2 years of age and older.

76
Q
  1. A drug that reduces congestion or swelling of the upper or lower respiratory tract.
A

decongestant

77
Q
  1. A drug that increases the flow of fluid in the respiratory tract.
A

expectorant

78
Q
  1. Generic name of a drug that belongs in the expectorant class
A

guaifenesin

79
Q
  1. Newer antihistamines that do not have CNS effects are known as ______.
A

non-sedating

80
Q
  1. A substance that is capable of inducing a specific immune response in the body.
A

antigen

81
Q
  1. Trade name for an older, traditional antihistamine.
A

Benadryl

82
Q
  1. Generic name of a drug that belongs in the antitussive class
A

dextromethorphan

83
Q
  1. A drug that reduces coughing.
A

antitussive

84
Q
  1. A nasal form of a drug that belongs in the decongestant class
A

phenylephrine

85
Q
  1. Trade name of a drug that belongs in the non-sedating class
A

Claritin

86
Q
  1. Why should antihistamines be used with caution in asthmatic clients?
A

Antihistamines should be used with caution in asthmatic clients because of the drying effect they have on the respiratory secretions. Use of antihistamines with these clients may result in thickening secretions, decreased expectoration of secretions, and more risk for pneumonia, mucus plugs, dyspnea, and infection.

87
Q
  1. Discuss the problem of rebound congestion when overusing nasal spray decongestants. Does this phenomenon also occur with oral decongestants? Explain your answer.
A

Rebound congestion occurs with overuse of decongestant nasal sprays because the nasal mucosa becomes accustomed to the medication when it is used for a long time. Once the client discontinues use of the medication, the nasal mucosa rebounds and gets even more congested. Oral decongestants are not associated with rebound congestion; the rebound appears to be with nasal and topical use.

88
Q
  1. What additional nursing interventions would be helpful for an older client without major medical problems who is taking guaifenesin?
A

The client should be told the following:
Report fevers above 38.3°C to the healthcare provider as soon as possible. Try to cough up the secretions as much as possible; increasing fluids and humidification may help liquefy and loosen secretions.
Only force fluids if not contraindicated. This is important because at this point, the guaifenesin is not helping get secretions up and out, so now the infectious process may be seen.
The client may need different treatment at this time to prevent pneumonia and other respiratory complications.

89
Q
  1. Your client is taking a xanthine derivative and should not ingest xanthine-containing beverages. What are examples of these beverages, and why is it important to avoid consuming them while taking a xanthine derivative?
A

Coffee, tea, chocolate, cocoa, and cola beverages contain xanthine. Consumption of these beverages will increase or exacerbate CNS stimulation associated with the xanthine-derivative medications. Over-stimulation of the CNS may have a severe impact on the client and, if excessive, could be life-threatening.

90
Q
  1. Discuss the necessary client education for the use of leukotriene modifiers, especially the rationale for the emphasis on taking the medication daily as ordered.
A

Clients need to understand that the leukotrienes are used for prophylaxis in asthmatic attacks when taken long term—they are not used to treat acute attacks. For best effect, clients need to take the medication regularly, as ordered, even if the symptoms improve and the clients are feeling better. In addition, it takes several weeks for full therapeutic effects. Clients are advised to take the medication on an empty stomach or 1 hour before or 2 hours after a meal. They should not double up on doses; if a dose is missed, they should take the dose as soon as remembered unless it is time for the next dose; in that instance, they should omit the missed dose and resume the regular dosage schedule.

91
Q
  1. State the general guidelines for the use of an MDI, especially when it is new to the client.
A

When a canister is new or has not been used for some time, activate it at least once into the air before administering the dose as ordered. This will help ensure that the first dose contains adequate amounts of the medication. Other points to emphasize with metered-dose inhalers (MDIs) and inhaler use are as follows:
• Rinsing of the mouth after using the inhaler or nebulizer is recommended.
• Pediatric clients may need a physician’s order to have these medications on hand at school and during athletic events or physical education activities.
• Peak flow meter use is also encouraged to help clients better regulate their disease. MDIs may be checked for residual amounts of medication so that the client can always be aware of when the medication may be running out in the inhaler. First, obtain a container that is wider and longer than the inhaler and fill up to three-fourths full with water. Drop the inhaler into the container with the water, but be sure that the mouthpiece is not on the inhaler. If the canister drops to the bottom and lies on its side, then it is full. If it drops to the bottom and lands with the bottom of the inhaler pointing upward, then it is about three-fourths full. If it lands in the water with about one-fourth of the bottom of the inhaler exposed, then it is approximately half full. If the canister “leans” to its side and is submerged except for about one-fourth of the bottom of the inhaler, then it is most likely about one-fourth full. Once the canister “floats” on top of the water line, then it is most likely near empty. Remember to educate clients about this little “check” on their inhalers, but also remind them that it is merely an estimate!