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Author Question: After oxygen is administered, a patient's heart rate changes from 110 to 85 beats/min. The initial ... (Read 9 times)

clippers!

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on: Jul 16, 2018
After oxygen is administered, a patient's heart rate changes from 110 to 85 beats/min. The initial tachycardia was most likely caused by which of the following?
 
  a. Anxiety
  b. Hypoxemia
  c. Hypercapnia
  d. Pain

Question 2

A 14-year-old boy who had previously been diagnosed with mild persistent asthma has a PEFR of 100 L/min. This indicates which of the following?
 
  a. Increased airway resistance
  b. Heart failure
  c. Increased lung compliance
  d. Inability to take in a deep breath and cough


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thall411

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: B
Tachycardia is a sign of hypoxemia. Once the hypoxemia is corrected, their heart rate typically improves.

Answer to Question 2

ANS: A
For patients with acute asthma, the PEFR is the most frequently used parameter to assess airway resistance.

Peak expiratory flow rate (PEFR) (L/min) 350-600 (normal) 75-100 (critical value)


clippers!

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Reply 2 on: Jul 16, 2018
Excellent

phuda

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Reply 3 on: Yesterday
Wow, this really help

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