Author Question: Which of the following are disadvantages of the nasal cannula? 1. Pressure necrosis 2. Drying nasal ... (Read 31 times)

stevenposner

  • Hero Member
  • *****
  • Posts: 608
Which of the following are disadvantages of the nasal cannula? 1. Pressure necrosis 2. Drying nasal mucosa 3. FIO2 not precise 4. Claustrophobia
 
  a. 1 and 4 c. 1, 2, and 3
  b. 1 and 2 d. 2 and 3

Question 2

The characteristic(s) of low-flow devices is (are): 1. fractional inspired oxygen (FIO2) from 0.22 to 0.60. 2. make use of a nasal cannula. 3. make use of a Venturi mask. 4. make use of a transtracheal catheter.
 
  a. 1, 2, and 4 c. 1
  b. 1 and 4 d. 1, 2, 3, and 4



aadams68

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

ANS: C
With straight prongs, oxygen flow is directed toward the superior aspects of the nasal cavity, thus promoting turbulent flow; with curved prongs, oxygen entering the nose is directed across the nasal turbinate, thus enhancing laminar flow as the gas flows through the nasal cavity. Thus, both types of prongs can cause the aforementioned disadvantages.

Answer to Question 2

ANS: A
All of the choices are low-flow devices except for a Venturi mask. A Venturi mask is an air-entrainment device, all of which are considered to be high-flow devices. Therefore, Venturi masks deliver a precise FIO2.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

For a complete list of videos, visit our video library