Pharmacology Quiz 2 NU 160

Correct Answer:

A. The medication will open the airways.

D. The medication will prevent wheezing.

E. The medication will decrease coughing episodes.

Explanation of the Correct Answers:

A. The medication will open the airways.

Albuterol is a beta-2 agonist that works by relaxing the smooth muscles around the airways, leading to bronchodilation. This helps open the airways, making it easier for the person to breathe, which is why albuterol is used in the treatment of conditions like asthma and COPD.

D. The medication will prevent wheezing.

By opening the airways, albuterol can prevent wheezing, which is commonly caused by constricted or narrowed airways. Wheezing is a hallmark symptom of asthma and other respiratory conditions, and albuterol helps alleviate it by improving airflow.

E. The medication will decrease coughing episodes.

Although albuterol is primarily used to alleviate wheezing and shortness of breath by opening the airways, it can indirectly reduce coughing episodes as well. This is because coughing can often be triggered by constricted or narrowed airways, and by improving airflow, albuterol can make breathing easier, thus reducing coughing that may be associated with bronchoconstriction.

Why the Other Options Are Incorrect:

B. The medication will reduce inflammation.

Albuterol is a bronchodilator, not an anti-inflammatory drug. While it helps open up the airways, it does not directly reduce inflammation in the airways. Medications like steroids are used for that purpose, but albuterol itself does not have an anti-inflammatory effect.

C. The medication will stimulate flow of mucus.

Albuterol does not stimulate mucus production. It works by relaxing the muscles of the airways to allow for easier breathing, but it does not directly affect mucus production or clearance. Mucus flow and secretion are typically managed by other types of treatments, such as expectorants.

Summary:

Albuterol opens the airways, prevents wheezing, and can reduce coughing by improving airflow. It does not directly reduce inflammation or stimulate mucus flow. Therefore, the correct answers are A, D, and E.

Correct Answer B: Inspect your mouth for lesions daily.

Explanation of the Correct Answer:

Fluticasone is an inhaled corticosteroid (ICS) used for the long-term control of chronic obstructive pulmonary disease (COPD) and asthma. It helps reduce inflammation in the airways, making breathing easier over time.

One of the potential side effects of inhaled corticosteroids like fluticasone is the development of oral thrush, which is a fungal infection that can cause lesions in the mouth. It is important for the client to inspect their mouth daily for any signs of white patches, sores, or irritation. If these symptoms occur, the client should report them to their healthcare provider, as they may need treatment with antifungal medication. Rinsing the mouth with water after using the inhaler can help prevent this side effect.

Why the Other Options Are Incorrect:

A. Skip the morning dose if you do not have any symptoms. 

This is not a recommended instruction. Fluticasone is a maintenance medication used regularly to control inflammation and symptoms over time. Even if the client does not have symptoms, it is important to use the medication as prescribed. Skipping doses could reduce its effectiveness in managing the condition.

C. Use this medication to relieve an asthma attack.

This is incorrect. Fluticasone is a preventive medication, not a rescue medication. It does not provide immediate relief during an asthma attack. For acute attacks, the client should use a short-acting beta-agonist (SABA), such as albuterol, which works quickly to open the airways.

D. Check your heart rate before each dose.

Checking the heart rate is not typically necessary for fluticasone use. Fluticasone does not have significant effects on heart rate. However, if the client is taking other medications that could affect the heart rate (such as certain bronchodilators), they might need to monitor their heart rate, but it is not required for fluticasone itself.

Summary:

The correct instruction is B because oral thrush is a common side effect of inhaled corticosteroids like fluticasone. Checking the mouth for lesions daily helps detect and prevent this issue early.

Correct Answer:

C. Mesalamine

E. Sulfasalazine

Explanation:

5-Aminosalicylates (5-ASAs) are a class of drugs commonly used to treat inflammatory bowel diseases (IBD) like ulcerative colitis and Crohn's disease. These drugs help to reduce inflammation in the intestines and are considered first-line therapies for managing mild to moderate IBD.

Mesalamine (also known as 5-ASA) is a primary medication in this class. It is used to reduce inflammation and treat symptoms of ulcerative colitis and other forms of IBD.

Sulfasalazine is also a 5-ASA medication. It is a prodrug that breaks down into sulfa (which has anti-inflammatory properties) and 5-ASA, which helps to reduce intestinal inflammation. Sulfasalazine is often used for ulcerative colitis and Crohn's disease.

Why the Other Options Are Incorrect:

A. Infliximab is not a 5-ASA. It is a biologic medication classified as a tumor necrosis factor (TNF) inhibitor. It works by targeting TNF-alpha, which plays a role in the inflammatory process of IBD. Infliximab is used for more moderate to severe cases of IBD, including Crohn’s disease and ulcerative colitis, but it is not a 5-ASA.

B. Adalimumab is also a TNF inhibitor and works in a similar way to infliximab. Like infliximab, it is used for moderate to severe IBD, but it is not classified as a 5-aminosalicylate.

D. Tofacitinib is a Janus kinase (JAK) inhibitor, which is used in ulcerative colitis and rheumatoid arthritis. It works by inhibiting the action of specific enzymes involved in the inflammatory process. It is not a 5-ASA.

Summary: 

The medications classified as 5-Aminosalicylates (5-ASAs) for the treatment of inflammatory bowel diseases in the provided options are Mesalamine and Sulfasalazine.

Correct Answer C: Isoniazid can cause tingling of the hands.

Explanation of the Correct Answer:

C. Isoniazid can cause tingling of the hands.

Isoniazid is an antibiotic used to treat tuberculosis (TB), and one of its known adverse effects is peripheral neuropathy, which causes tingling, numbness, or a "pins and needles" sensation in the hands and feet. This is a result of nerve damage, often due to the drug’s effects on vitamin B6 (pyridoxine) metabolism. Patients on isoniazid are sometimes given vitamin B6 supplements to help prevent this side effect.

Why the Other Options Are Incorrect:

A. Isoniazid can cause ringing in the ears.

Ringing in the ears, or tinnitus, is not a typical side effect of isoniazid. It is more commonly associated with ototoxic drugs, like certain antibiotics (e.g., aminoglycosides) or chemotherapy agents, but not isoniazid.

B. Isoniazid can cause pain in the joints.

While joint pain is not a common adverse effect of isoniazid, it may rarely cause arthralgia (joint pain). However, this is not one of the main or characteristic side effects of the drug.

D. Isoniazid can cause yellowing of the skin.

Yellowing of the skin (jaundice) is more often related to liver dysfunction. While isoniazid can affect liver function (causing hepatotoxicity), it typically causes elevated liver enzymes, but yellowing of the skin is not a typical presentation. Jaundice may occur in severe liver toxicity, but it’s not a direct or common adverse effect of isoniazid alone.

Summary:

The correct answer is C because tingling in the hands (peripheral neuropathy) is a known adverse effect of isoniazid. Other side effects, such as pain in the joints, tinnitus, and jaundice, are not typical for this drug, although liver toxicity (which can lead to jaundice) is a known, though less frequent, serious side effect.

Correct Answer C: Reduced dyspepsia

Explanation of the Correct Answer:

Omeprazole is a proton pump inhibitor (PPI) that works by reducing gastric acid production. It is commonly prescribed to treat conditions like gastroesophageal reflux disease (GERD), peptic ulcers, and dyspepsia (indigestion). Reduced dyspepsia—which includes symptoms like heartburn, bloating, and discomfort after eating—is a clear indication that omeprazole is effective in decreasing gastric acid secretion and improving the client's symptoms.

Why the Other Options Are Incorrect:

A. Regular bowel movements

Incorrect. Omeprazole does not directly affect bowel movements. While it may help with stomach acid, it is not intended to regulate bowel function.

B. Increased appetite

Incorrect. Omeprazole does not typically cause increased appetite. If a client experiences changes in appetite, other factors should be considered, such as medication side effects or underlying conditions.

D. Absence of headache

Incorrect. Headaches are not a primary symptom of the conditions that omeprazole treats, and the absence of a headache is not a direct indicator of the medication's effectiveness.

Summary:

The most appropriate indicator of omeprazole's effectiveness in this case is reduced dyspepsia, as the drug is designed to alleviate symptoms related to excessive stomach acid.

Correct Answer D: Avoid driving until effects are known.

Explanation of the Correct Answer:

Cyclobenzaprine is a centrally acting skeletal muscle relaxant commonly prescribed to treat acute muscle spasms associated with musculoskeletal conditions. It works by depressing motor activity primarily in the brainstem, leading to muscle relaxation. One of the most important safety considerations when starting cyclobenzaprine is its sedative effect, which can cause drowsiness, dizziness, and impaired cognitive or motor performance.

Because of these central nervous system effects, clients are advised to avoid driving, operating heavy machinery, or engaging in hazardous activities until they understand how the drug affects them individually. This is particularly crucial during the initial stages of treatment or when the dose is increased, as sedation may be pronounced.

Why the Other Options Are Incorrect:

A. Monitor for increased muscle spasms

Incorrect. Cyclobenzaprine is used to reduce muscle spasms, not increase them. If spasms worsen, it may indicate an ineffective response, but it is not a common or expected adverse effect of the drug.

B. Discontinue medication if nausea occurs.

Incorrect. Nausea is a relatively mild and non-life-threatening side effect of cyclobenzaprine. It should not be a reason for abrupt discontinuation. Instead, clients should report persistent or severe nausea to their provider, who may adjust the dose or provide supportive measures.

C. Expect urine to turn orange

Incorrect. Orange discoloration of urine is associated with medications like phenazopyridine, not cyclobenzaprine. This is not an expected or typical side effect of this muscle relaxant.

Summary:

The nurse should teach the client to avoid driving until the effects of cyclobenzaprine are known, due to its potential to cause sedation and impair motor and cognitive function, especially during the initial treatment period.

Correct Answer C: Administer the medications 5 minutes apart.

Explanation of the Correct Answer:

It is important to administer timolol and pilocarpine eye drops at least 5 minutes apart to ensure that one medication does not dilute or interfere with the action of the other. By waiting between administrations, you maximize the effectiveness of each medication.

Why the Other Options Are Incorrect:

A. Hold pressure on the conjunctiva sac for 2 min following application of drops.

Incorrect. While punctal occlusion is often recommended with some eye medications to reduce systemic absorption, this is more critical with medications that have significant systemic side effects (e.g., timolol). However, this is not the best choice in this scenario as per standard practice.

B. It is not necessary to remove contact lenses before administering medications.

Incorrect. Contact lenses should be removed before administering eye drops, as some medications can adhere to the lenses, causing irritation or affecting the drug's effectiveness.

D. Administer the medications by touching the tip of the dropper to the surface of the eye.

Incorrect. The dropper tip should never touch the eye or eyelashes to avoid contamination and possible infection.

Summary:

The correct teaching for the client is to administer the medications 5 minutes apart to allow each medication to be effective without interference.

Correct Answer:

A. Ethambutol

B. Isoniazid

C. Pyrazinamide

D. Rifampicin

Explanation of the Correct Answer:

The treatment of tuberculosis (TB) usually involves a combination of drugs to effectively kill the bacteria and prevent resistance. The first-line medications commonly used for treating TB are:

A. Ethambutol :

This is an important drug in the treatment of TB. It works by inhibiting the synthesis of the mycobacterial cell wall. Ethambutol is typically used in combination with other TB drugs.

B. Isoniazid :

Isoniazid is a key antibiotic used to treat active TB. It works by inhibiting the synthesis of mycolic acids, which are essential components of the mycobacterial cell wall.

C. Pyrazinamide :

Pyrazinamide is used in the initial phase of treatment for TB, particularly effective against dormant bacteria within macrophages. It plays an important role in shortening the duration of therapy.

D. Rifampicin :

Rifampicin is a potent antibiotic that inhibits bacterial RNA synthesis. It is a cornerstone of TB treatment and is often used in combination with other drugs to prevent resistance.

These four drugs, when used together in combination, form the core treatment regimen for TB, typically for a duration of at least six months.

Why the Other Options Are Incorrect:

E. Clindamycin :

Clindamycin is an antibiotic, but it is not used to treat TB. It is typically used for treating infections caused by certain types of bacteria, such as Gram-positive cocci and some anaerobic bacteria, but it does not have efficacy against Mycobacterium tuberculosis, the bacterium responsible for TB.

F. Ciprofloxacin :

Ciprofloxacin is a fluoroquinolone antibiotic that can be used in drug-resistant TB in some cases. However, it is not part of the first-line treatment regimen for typical TB. It might be used as part of a second-line treatment in resistant TB strains, but it's not a routine treatment.

Summary:

The recommended treatments for TB are ethambutol, isoniazid, pyrazinamide, and rifampicin. These medications are typically used in combination as part of a first-line therapy for TB. Clindamycin and ciprofloxacin are not typically used for standard TB treatment, though ciprofloxacin may have a role in drug-resistant TB cases.

Correct Answers:

B. Redness or mild pain at the injection site is a common side effect.

C. Patients should monitor for signs of infection after self-injection.

E. Adalimumab can lead to reactivation of tuberculosis.

Explanation of the Correct Answers:

B. Redness or mild pain at the injection site is a common side effect.

This is a well-known side effect of subcutaneous injections, including adalimumab. The injection can cause localized redness, mild pain, swelling, or itching at the site. This is usually temporary and resolves on its own.

C. Patients should monitor for signs of infection after self-injection.

Adalimumab, like other biologic medications, can increase the risk of infections. Because it suppresses the immune system, patients should be vigilant and monitor for symptoms such as fever, redness, or swelling at the injection site, or signs of systemic infection like chills or cough.

E. Adalimumab can lead to reactivation of tuberculosis.

Adalimumab can suppress the immune system and potentially reactivate latent tuberculosis (TB) infections. Patients are often screened for TB prior to starting adalimumab therapy to reduce the risk of reactivation.

Why the Other Options Are Incorrect:

A. The injection site should be kept moist to prevent infection.

Incorrect. The injection site should be kept clean and dry. Moisture can increase the risk of infection, and patients should follow proper cleaning techniques before administering the injection. Typically, alcohol wipes are used to clean the skin prior to injection.

D. Infections are not a concern with adalimumab treatment.

Incorrect. Infections are a significant concern with adalimumab therapy because it suppresses the immune system, increasing the risk of both local and systemic infections. This is why infection monitoring is crucial during treatment.

F. The medication should be injected into the muscle of the upper arm.

Incorrect. Adalimumab is typically administered subcutaneously, not intramuscularly. Common injection sites include the abdomen or the front of the thigh. Injecting into the muscle of the upper arm is not the recommended method.

Summary:

The true statements regarding adalimumab's side effects and self-injection technique are: redness or mild pain at the injection site is common, patients should monitor for signs of infection, and adalimumab can lead to reactivation of tuberculosis. Proper injection technique and infection monitoring are essential components of safe adalimumab use.