NUR103 TB

Which of the following family members exposed to tuberculosis would be at highest risk for contracting the disease? 1. 45-year-old mother. 2. 17-year-old daughter. 3. 8-year-old son. 4. 76-year-old grandmother.

4. Elderly persons are believed to be at higher risk for contracting tuberculosis because of decreased immunocompetence.

What is the rationale that supports multidrug treatment for clients with tuberculosis? 1. Multiple drugs potentiate the drugs' actions. 2. Multiple drugs reduce undesirable drug adverse effects. 3. Multiple drugs allow reduced drug dosages to be given. 4. Multiple drugs reduce development of resistant strains of the bacteria.

4. Use of a combination of antituberculosis drugs slows the rate at which organisms develop drug resistance. Combination therapy also appears to be more effective than single-drug therapy. Many drugs potentiate (or inhibit) the actions of other drugs; however, this is not the rationale for using multiple drugs to treat tuberculosis. Treatment with multiple drugs does not reduce adverse effects and may expose the client to more adverse effects. Combination therapy may allow some medications (e.g., antihypertensives) to be given in reduced dosages; however, reduced dosages are not prescribed for antibiotics and antituberculosis drugs.

In which areas of the United States is the incidence of tuberculosis highest? 1. Rural farming areas. 2. Inner-city areas. 3. Areas where clean water standards are low. 4. Suburban areas with significant industrial pollution.

2. Statistics show that of the four geographic areas described, most cases of tuberculosis are found in inner-core residential areas of large cities, where health and sanitation standards tend to be low. Substandard housing, poverty, and crowded living conditions also generally characterize these city areas and contribute to the spread of the disease. Farming areas have a low incidence of tuberculosis. Variations in water standards and industrial pollu-tion are not correlated to tuberculosis incidence.

A client with tuberculosis is taking Isoniazid (INH). To help prevent development of peripheral neuropathies, the nurse should instruct the client to: 1. Adhere to a low-cholesterol diet. 2. Supplement the diet with pyridoxine (vitamin B6). 3. Get extra rest. 4. Avoid excessive sun exposure.

2. INH competes for the available vitamin B6 in the body and leaves the client at risk for development of neuropathies related to vitamin deficiency. Supplemental vitamin B6 is routinely prescribed. Following a low-cholesterol diet, getting extra rest, and avoiding excessive sun exposure will not pre-vent the development of peripheral neuropathies.

The nurse is providing follow-up care to a client with tuberculosis who does not regularly take his medication. Which nursing action would be most appropriate for this client? 1. Ask the client's spouse to supervise the daily administration of the medications. 2. Visit the client weekly to ask him whether he is taking his medications regularly. 3. Notify the physician of the client's noncompliance and request a different prescription. 4. Remind the client that tuberculosis can be fatal if it is not treated promptly.

1. Directly observed therapy (DOT) can be implemented with clients who are not compliant with drug therapy. In DOT, a responsible person, who may be a family member or a health care provider, observes the client taking the medication. Visiting the client, changing the prescription, or threatening the client will not ensure compliance if the client will not or cannot follow the prescribed treatment.

A client has a positive reaction to the Mantoux test. The nurse correctly interprets this reaction to mean that the client has: 1. Active tuberculosis. 2. Had contact with Mycobacterium tuberculosis. 3. Developed a resistance to tubercle bacilli. 4. Developed passive immunity to tuberculosis.

2. A positive Mantoux skin test indicates that the client has been exposed to tubercle bacilli. Expo-sure does not necessarily mean that active disease exists. A positive Mantoux test does not mean that the client has developed resistance. Unless involved in treatment, the client may still develop active disease at any time. Immunity to tuberculosis is not possible.

Which of the following symptoms is common in clients with active tuberculosis? 1. Weight loss. 2. Increased appetite. 3. Dyspnea on exertion. 4. Mental status changes.

1. Tuberculosis typically produces anorexia and weight loss. Other signs and symptoms may include fatigue, low-grade fever, and night sweats. Increased appetite is not a symptom of tuberculosis; dyspnea on exertion and change in mental status are not common symptoms of tuberculosis.

The nurse should teach clients that the most common route of transmitting tubercle bacilli from person to person is through contaminated: 1. Dust particles. 2. Droplet nuclei. 3. Water. 4. Eating utensils.

2. Tubercle bacilli are spread by airborne droplet nuclei. Droplet nuclei are the residue of evaporated droplets containing the bacilli, which remain suspended and are circulated in the air. Dust particles and water do not spread tubercle bacilli. Tuberculosis is not spread by eating utensils, dishes, or other fomites.

The nurse should caution sexually active female clients taking isoniazid (INH) that the drug has which of the following effects? 1. Increases the risk of vaginal infection. 2. Has mutagenic effects on ova. 3. Decreases the effectiveness of hormonal contraceptives. 4. Inhibits ovulation.

3. INH interferes with the effectiveness of hormonal contraceptives, and female clients of childbearing age should be counseled to use an alternative form of birth control while taking the drug. INH does not increase the risk of vaginal infection, nor does it affect the ova or ovulation.

The nurse should place a client being admit-ted to the hospital with suspected tuberculosis on what type of isolation? 1. Standard precautions. 2. Contact precautions. 3. Droplet precautions. 4. Airborne precautions.

4. Airborne precautions prevent transmission of infectious agents that remain infectious over long distances when suspended in the air (e.g. mycobacterium tuberculosis, measles, varicella virus [chickenpox], and possibly SARS-CoV). The preferred placement is in an isolation single-client room that is equipped with special air handling and ventilation. A negative pressure room, or an area that exhausts room air directly outside or through HEPA filters, should be used if recirculation is unavoidable. Standard precautions combine the major features of Universal Precautions and Body Sub-stance Isolation and are based on the principle that the blood, body fluids, secretions, and excretions of all clients may contain transmissible infectious agents. Standard precautions include: hand hygiene; use of gloves, gown, mask, eye protection, or face shield, depending on the anticipated exposure; and safe injection practices. Contact precautions are for clients with known or suspected infections or evidence of syndromes that represent an increased risk for contact transmission. Droplet precautions are intended to prevent transmission of pathogens spread through close respiratory or mucous membrane contact with respiratory secretions. Because these pathogens do not remain infectious over long distances in a health care facility, special air handling and ventilation are not required to prevent droplet transmission.

Clients who have had active tuberculosis are at risk for recurrence. Which of the following conditions increases that risk? 1. Cool and damp weather. 2. Active exercise and exertion. 3. Physical and emotional stress. 4. Rest and inactivity.

3. Tuberculosis can be controlled but never completely eradicated from the body. Periods of intense physical or emotional stress increase the likelihood of recurrence.

A client who has been diagnosed with tuberculosis has been placed on drug therapy. The medication regimen includes rifampin (Rifadin). Which of the following instructions should the nurse include in the client's teaching plan related to the potential adverse effects of rifampin? Select all that apply. 1. Having eye examinations every 6 months. 2. Maintaining follow-up monitoring of liver enzymes. 3. Decreasing protein intake in the diet. 4. Avoiding alcohol intake. 5. The urine may have an orange color

2, 4, 5. A potential adverse effect of rifampin (Rifadin) is hepatotoxicity. Clients should be instructed to avoid alcohol intake while taking rifampin and keep follow-up appointments for periodic monitoring of liver enzyme levels to detect liver toxicity. Rifampin causes the urine to turn an orange color and the client should understand that this is normal. It is not necessary to restrict protein intake in the diet or have the eyes examined due to rifampin therapy.

The nurse is teaching a client who has been diagnosed with tuberculosis how to avoid spreading the disease to family members. Which statement(s) by the client indicate(s) that he has understood the nurse's instructions? Select all that apply. 1. "I will need to dispose of my old clothing when I return home." 2. "I should always cover my mouth and nose when sneezing." 3. "It is important that I isolate myself from family when possible." 4. "I should use paper tissues to cough in and dispose of them promptly." 5. "I can use regular plates and utensils when-ever I eat."

2, 4, 5. When teaching the client how to avoid the transmission of tubercle bacilli, it is important for the client to understand that the organism is transmitted by droplet infection. There-fore, covering the mouth and nose when sneez-ing, using paper tissues to cough in with prompt disposal, and using regular plates and utensils indicate that the client has understood the nurse's instructions about preventing the spread of airborne droplets. It is not essential to discard clothing, nor does the client need to isolate himself from family members.

The client with tuberculosis is to be discharged home with community health nursing follow-up. Of the following nursing interventions, which should have the highest priority? 1. Offering the client emotional support. 2. Teaching the client about the disease and its treatment. 3. Coordinating various agency services. 4. Assessing the client's environment for sanitation.

2. Ensuring that the client is well educated about tuberculosis is the highest priority. Education of the client and family is essential to help the client understand the need for completing the prescribed drug therapy to cure the disease. Offering the client emotional support, coordinating various agency services, and assessing the environment may be part of the care for the client with tuberculosis; however, these interventions are of less importance than education about the disease process and its treatment.

The nurse should include which of the following instructions when developing a teaching plan for a client who is receiving isoniazid and rifampin (Rifamate) for treatment of tuberculosis? 1. Take the medication with antacids. 2. Double the dosage if a drug dose is missed. 3. Increase intake of dairy products. 4. Limit alcohol intake.

4. Isoniazid and rifampin (Rifamate) is a hepatotoxic drug. The client should be warned to limit intake of alcohol during drug therapy. The drug should be taken on an empty stomach. If ant-acids are needed for gastrointestinal distress, they should be taken 1 hour before or 2 hours after the drug is administered. The client should not double the dose of the drug because of potential toxicity. The client taking the drug should avoid foods that are rich in tyramine, such as cheese and dairy products, or he may develop hypertension.