Nokea
Which statement is false?
- A. Dorsal respiratory group in upper pons is responsible for inspiration
- B. Apneustic centre can inhibit the inspiratory centre
- C. Pneumotaxic centre is responsible for prolonged inspiratory gasp interrupted by transient expiratory efforts
- D. None of the above
Correct Answer: D
Rationale: The correct answer is D, None of the above, is false.
A: Dorsal respiratory group in the upper pons is indeed responsible for inspiration.
B: The apneustic centre can inhibit the inspiratory centre, so this statement is true.
C: The pneumotaxic centre is responsible for regulating the duration and depth of each breath, not for a prolonged inspiratory gasp interrupted by expiratory efforts.
Therefore, choice D is false as all the other statements are accurate.
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Partial pressure of Oxygen in the inspired and expired air is respectively
- A. 158 and 116 mm Hg
- B. 158 and 40 mm Hg
- C. 100 and 95 nn Hg
- D. 40 and 95 mm Hg
Correct Answer: B
Rationale: The correct answer is B (158 and 40 mm Hg) because the partial pressure of oxygen in inspired air is approximately 158 mm Hg, while in expired air it decreases to around 40 mm Hg due to oxygen being taken up by the body tissues for metabolism. Choice A (158 and 116 mm Hg) is incorrect because expired air has a lower partial pressure of oxygen than inspired air. Choice C (100 and 95 mm Hg) is incorrect as it does not reflect the significant decrease in oxygen partial pressure from inspired to expired air. Choice D (40 and 95 mm Hg) is incorrect as it has the values reversed, with expired air having a higher partial pressure of oxygen than inspired air, which is not physiologically accurate.
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.
What instructions will you give the nursing assistant who will assist the client with ADLs? (Choose all that apply.)
- A. Use a lift sheet when moving and positioning the client in bed.
- B. Use an electric razor when shaving the client each day.
- C. Use a soft-bristled toothbrush or tooth sponge for oral care.
- D. Use a rectal thermometer to attain a more accurate body temperature.
Correct Answer: D
Rationale: The correct answer includes A, B, and C. Using a lift sheet (A), electric razor (B), and soft-bristled toothbrush (C) are safe practices during anticoagulation therapy. Using a rectal thermometer (D) is contraindicated due to bleeding risk.
While assessing a client who has facial trauma the nurse auscultates stridor. The client is anxious and restless. What action would the nurse take first?
- A. Contact the primary health care provider and prepare for intubation.
- B. Administer prescribed albuterol nebulizer therapy.
- C. Place the client in high-Fowler position.
- D. Ask the client to perform deep-breathing exercises.
Correct Answer: A
Rationale: Rationale: Stridor indicates upper airway obstruction, which can quickly progress to respiratory distress. As the client is anxious and restless, immediate intervention is crucial. Contacting the primary health care provider and preparing for intubation is the priority to secure the airway and ensure adequate oxygenation. Administering albuterol, positioning in high-Fowler, or deep-breathing exercises are not appropriate as they do not address the acute airway compromise.
Following assessment of a patient with pneumonia, the nurse identifies a nursing diagnosis of impaired gas exchange based on which finding?
- A. SpO of 86%
- B. Crackles in both lower lobes
- C. Temperature of 101.4ºF (38.6ºC)
- D. Production of greenish purulent sputum
Correct Answer: A
Rationale: Impaired gas exchange is indicated by a low SpO2 level, in this case 86%, which suggests inadequate oxygenation. Crackles, temperature, and sputum production are important assessments but do not directly indicate impaired gas exchange.