Nokea
When a disease infects a host a portal of entry is needed for an organism to gain access. What has been identified as the portal of entry for tuberculosis?
- A. Integumentary system
- B. Urinary system
- C. Respiratory system
- D. Gastrointestinal system
Correct Answer: C
Rationale: Tuberculosis is transmitted via inhalation of airborne droplets, making the respiratory system the primary portal of entry.
You may also like to solve these questions
An older adult patient tells the nurse that she had chicken pox as a child and is eager to be vaccinated against shingles. What should the nurse teach the patient about this vaccine?
- A. Vaccination against shingles is contraindicated in patients over the age of 80.
- B. Vaccination can reduce her risk of shingles by approximately 50%.
- C. Vaccination against shingles involves a series of three injections over the course of 6 months.
- D. Vaccination against shingles is only effective if preceded by a childhood varicella vaccination.
Correct Answer: B
Rationale: Zostavax reduces shingles risk by about 50% in adults over 60. It is a single injection, not contraindicated by age, and effective regardless of prior varicella vaccination.
The nurse is caring for a patient who is colonized with methicillin-resistant Staphylococcus aureus (MRSA). What infection control measure has the greatest potential to reduce transmission of MRSA and other nosocomial pathogens in a health care setting?
- A. Using antibacterial soap when bathing patients with MRSA
- B. Conducting culture surveys on a regularly scheduled basis
- C. Performing hand hygiene before and after contact with every patient
- D. Using aseptic housekeeping practices for environmental cleaning
Correct Answer: C
Rationale: Hand hygiene is the most effective measure to prevent MRSA and nosocomial pathogen transmission. Antibacterial soap, culture surveys, and housekeeping are less impactful.
The nurse is providing care for an older adult patient who has developed signs and symptoms of Calicivirus (Norovirus). What assessment should the nurse prioritize when planning this patients care?
- A. Respiratory status
- B. Pain
- C. Fluid intake and output
- D. Deep tendon reflexes and neurological status
Correct Answer: C
Rationale: Norovirus causes vomiting and diarrhea, risking fluid volume deficit, so fluid balance assessment is critical. Other assessments are less urgent.
A student nurse completing a preceptorship is reviewing the use of standard precautions. Which of the following practices is most consistent with standard precautions?
- A. Wearing a mask and gown when starting an IV line
- B. Washing hands immediately after removing gloves
- C. Recapping all needles promptly after use to prevent needlestick injuries
- D. Double-gloving when working with a patient who has a blood-borne illness
Correct Answer: B
Rationale: Handwashing after glove removal is a core standard precaution to prevent contamination. Masks, gowns, needle recapping, and double-gloving are not standard practices.
An older adult patient has been diagnosed with Legionella infection. When planning this patients care, the nurse should prioritize which of the following nursing actions?
- A. Monitoring for evidence of skin breakdown
- B. Emotional support and promotion of coping
- C. Assessment for signs of internal hemorrhage
- D. Vigilant monitoring of respiratory status
Correct Answer: D
Rationale: Legionella primarily affects the lungs, causing cough, dyspnea, and chest pain, so respiratory monitoring is critical. Skin breakdown, hemorrhage, and emotional support are secondary.