Nokea
Food and drink are prevented from entering the respiratory passageways during swallowing by means of the
- A. glottis.
- B. pharynx.
- C. epiglottis.
- D. larynx.
Correct Answer: C
Rationale: The correct answer is C: epiglottis. During swallowing, the epiglottis covers the opening of the larynx to prevent food and drink from entering the respiratory passageways. It acts as a lid that directs food and liquids to the esophagus instead of the trachea. The glottis (choice A) is the space between the vocal cords, the pharynx (choice B) is the passageway for food and air, and the larynx (choice D) contains the vocal cords. The epiglottis specifically functions to protect the airway during swallowing.
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The organ of the respiratory system that closes when food is being swallowed is the:
- A. nose
- B. pharynx
- C. larynx
- D. trachea
Correct Answer: C
Rationale: The correct answer is C: larynx. The larynx houses the vocal cords and serves as a passageway for air between the pharynx and trachea. During swallowing, the larynx closes to prevent food and liquids from entering the airway, directing them towards the esophagus instead. The nose (A) is not directly involved in swallowing. The pharynx (B) is a shared pathway for both air and food, but it does not actively close during swallowing. The trachea (D) is responsible for transporting air to and from the lungs and does not play a role in swallowing.
In an adult patient with bronchiectasis, what is a nursing assessment likely to reveal?
- A. Chest trauma
- B. Childhood asthma
- C. Smoking or oral tobacco use
- D. Recurrent lower respiratory tract infections
Correct Answer: D
Rationale: In an adult patient with bronchiectasis, a nursing assessment is likely to reveal recurrent lower respiratory tract infections due to the damaged and widened airways in the lungs.
Which blood pressure (BP) finding by the nurse indicates that no changes in therapy are needed for a 78-yr-old patient with newly diagnosed hypertension?
- A. 98/56 mm Hg
- B. 118/76 mm Hg
- C. 128/92 mm Hg
- D. 142/78 mm Hg
Correct Answer: B
Rationale: The correct answer is B (118/76 mm Hg) because it falls within the recommended range for a 78-year-old patient with hypertension. The systolic BP should ideally be below 140 mm Hg and the diastolic BP below 90 mm Hg for this age group. Option A is too low for systolic BP, indicating hypotension. Option C has elevated diastolic BP, suggesting uncontrolled hypertension. Option D has high systolic BP, indicating a need for therapy adjustment. Thus, only option B aligns with the guidelines, making it the correct choice.
A black client with asthma seeks emergency care for acute respiratory distress. Because of this client's dark skin, the nurse should assess for cyanosis by inspecting the:
- A. Lips
- B. Mucous membranes
- C. Nail beds
- D. Earlobes
Correct Answer: B
Rationale: The correct answer is B: Mucous membranes. Cyanosis, a bluish discoloration of the skin and mucous membranes, is an important sign of respiratory distress. In individuals with dark skin, cyanosis may be more easily detected in the mucous membranes, such as the lips and oral mucosa, compared to the skin. The lips (choice A), nail beds (choice C), and earlobes (choice D) may not always show cyanosis clearly in individuals with darker skin tones. Therefore, assessing the mucous membranes is the best option for identifying cyanosis accurately in this scenario.
which of the following part of the ear separate middle ear from outer ear
- A. oval window
- B. round window
- C. Malleaus
- D. tympanic membrane
Correct Answer: D
Rationale: The correct answer is D: tympanic membrane because it separates the middle ear from the outer ear. The tympanic membrane, also known as the eardrum, vibrates in response to sound waves and transmits these vibrations to the middle ear. The oval window (A) is a membrane-covered opening in the inner ear that receives vibrations from the stapes bone. The round window (B) is a membrane-covered opening that equalizes pressure within the inner ear. The malleus (C) is a small bone in the middle ear that transmits sound vibrations from the eardrum to the incus. Therefore, the tympanic membrane is the correct answer as it physically separates the middle ear from the outer ear.