Nokea
A client with active tuberculosis asks why he must take four different medications. Which of the following responses should the nurse make?
- A. Four medications decrease the risk of a severe allergic reaction.
- B. Four medications reduce the chance that the bacteria will become resistant.
- C. Four medications reduce the risk of adverse reactions.
- D. Four medications decrease the chance of having a positive tuberculin skin test.
Correct Answer: B
Rationale: The correct answer is B. When treating tuberculosis, using a combination of medications is crucial to reduce the risk of bacteria developing resistance to any single drug. This approach helps prevent treatment failure and ensures successful treatment outcomes. Choice A is incorrect because the primary purpose of using multiple medications is not related to allergic reactions. Choice C is incorrect as the risk reduction is mainly focused on bacterial resistance rather than adverse reactions. Choice D is not relevant as the purpose of taking multiple medications is not to affect the tuberculin skin test results.
You may also like to solve these questions
The following drugs exert their principal effects by enzyme inhibition:
- A. Pyridostigmine
- B. Atropine
- C. Amlodipine
- D. Selegiline
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Which medication is used as a bronchodilator?
- A. Warfarin
- B. Lovastatin
- C. Albuterol
- D. Valproate
Correct Answer: C
Rationale: Albuterol is the correct answer. It is a medication commonly used as a bronchodilator to treat conditions such as asthma. Albuterol works by relaxing the muscles in the airways, allowing better airflow and making breathing easier for individuals with respiratory conditions. Warfarin (Choice A) is an anticoagulant used to prevent blood clots, Lovastatin (Choice B) is a medication used to lower cholesterol levels, and Valproate (Choice D) is used to treat seizures and bipolar disorder. These medications are not bronchodilators and are used for different medical conditions.
Which of the following most accurately describes the antibacterial mechanism of penicillin:
- A. inhibits DNA synthesis
- B. inhibits the terminal step in peptidoglycan synthesis
- C. Inhibits protein synthesis in growing bacterial cells
- D. disrupts the integrity of the cell membrane
Correct Answer: B
Rationale: Penicillin is a type of antibiotic that works by inhibiting bacterial cell wall synthesis. Peptidoglycan is a critical component of the bacterial cell wall, providing structural support and preventing the cell from bursting. Penicillin specifically targets the final step in peptidoglycan synthesis, known as cross-linking, by binding to and inhibiting the enzyme transpeptidase. Without proper cross-linking of peptidoglycan, the bacterial cell wall becomes weak and compromised, leading to cell lysis and bacterial death. This mechanism makes penicillin highly effective in combating bacterial infections.
To which pharmacologic classification does the drug propranolol belong?
- A. Beta Blockers
- B. Cholinergics
- C. Immune globulins
- D. Barbiturates
Correct Answer: A
Rationale: Propranolol belongs to the pharmacologic classification of Beta Blockers. Beta blockers work by blocking the action of adrenaline and other stress hormones on beta-adrenergic receptors. They are commonly used to manage conditions like high blood pressure, angina, and arrhythmias. Choice B, Cholinergics, is incorrect because cholinergics work by stimulating the parasympathetic nervous system, unlike beta blockers that block adrenergic receptors. Choice C, Immune globulins, is incorrect as it refers to antibodies used to boost the immune system, not the mechanism of action of propranolol. Choice D, Barbiturates, is incorrect as barbiturates are a different class of drugs that act as central nervous system depressants, primarily used as sedatives and anesthetics.
A healthcare professional is preparing to administer Enoxaparin to a client. Which of the following actions should the healthcare professional take?
- A. Administer the medication orally.
- B. Massage the injection site after administration.
- C. Insert the needle at a 45- to 90-degree angle.
- D. Aspirate before injecting the medication.
Correct Answer: C
Rationale: Enoxaparin should be administered subcutaneously at a 45- to 90-degree angle. This angle ensures proper delivery of the medication. Massaging the injection site should be avoided to prevent bruising and possible tissue damage. Aspiration is not required for subcutaneous injections like Enoxaparin. Therefore, the correct action for administering Enoxaparin is to insert the needle at a 45- to 90-degree angle.