which of the following conditions may cause an increased respiratory rate

NCLEX-RN

Health Promotion and Maintenance NCLEX RN Questions

1. Which of the following conditions may cause an increased respiratory rate?

A. Stooped posture
B. Narcotic analgesics
C. Injury to the brain stem
D. Anemia

Correct answer: D

Rationale: Anemia can lead to an increased respiratory rate. In anemia, there are decreased levels of hemoglobin in red blood cells, which are responsible for carrying oxygen to the body's tissues. To compensate for the reduced oxygen-carrying capacity, the body increases the respiratory rate to bring in more oxygen. Stooped posture (Choice A) is not directly related to an increased respiratory rate. Narcotic analgesics (Choice B) are more likely to cause a decreased respiratory rate due to their central nervous system depressant effects. Injury to the brain stem (Choice C) can affect respiratory function but may not necessarily lead to an increased respiratory rate.

2. A client must use a non-rebreathing oxygen mask. Which of the following statements is true regarding this type of mask?

A. A non-rebreather can provide an FiO2 of 40%.
B. A client should breathe through his or her mouth when using a non-rebreather.
C. A non-rebreather offers a reservoir from which the client inhales.
D. The mask of a non-rebreather should be changed every 3 hours.

Correct answer: A

Rationale: A non-rebreather mask is used for supplemental oxygen delivery for clients experiencing breathing difficulties. The non-rebreather mask includes a one-way valve that allows exhaled air to escape, preventing the rebreathing of carbon dioxide. The client inhales oxygenated air from a reservoir bag attached to the mask, providing high-concentration oxygen therapy. A non-rebreather mask can deliver FiO2 levels of up to 90%, making it an effective intervention for clients requiring high oxygen concentrations. Therefore, the statement that 'A non-rebreather can provide an FiO2 of 40%' is correct. Choices B, C, and D are incorrect because clients should breathe through their nose and mouth, the mask offers a reservoir for inhaling oxygen, and the mask should be assessed and potentially replaced if soiled or damaged, not routinely changed every 3 hours.

3. A 27-year-old writer is admitted for the second time accompanied by his wife. He is demanding, arrogant, talks fast, and is hyperactive. Initially the nurse should plan this for a manic client:

A. Set realistic limits to the client's behavior
B. Repeat verbal instructions as often as needed
C. Allow the client to express feelings to relieve tension
D. Assign staff to be with the client at all times to help maintain control

Correct answer: A

Rationale: For a manic client who is hyperactive and may engage in injurious activities, setting realistic limits to the client's behavior is crucial to ensure safety. A quiet environment with firm and consistent limits helps in managing the client's behavior effectively. While repeating verbal instructions can be helpful due to the client's distractibility, it is not the priority compared to setting limits for safety concerns. Allowing the client to express feelings is important, but it should be done through non-destructive methods. Assigning staff to be with the client at all times is not realistic or feasible in the clinical setting and does not address the core issue of managing the client's behavior and ensuring safety.

4. A 31-year-old woman who has multiple sclerosis (MS) asks the nurse about risks associated with pregnancy. Which response by the nurse is accurate?

A. MS symptoms may be worse after the pregnancy
B. Women with MS frequently have premature labor
C. MS is associated with an increased risk for congenital defects
D. Symptoms of MS are likely to become worse during pregnancy

Correct answer: A

Rationale: After pregnancy, women with MS are at higher risk for exacerbation of symptoms due to the postpartum period. There is no increased risk for congenital defects in infants born to mothers with MS. Symptoms of MS may actually improve during pregnancy, likely due to hormonal changes. MS does not significantly impact the onset of labor. Therefore, the correct response is that MS symptoms may worsen after pregnancy, making option A the accurate answer. Options B, C, and D are incorrect as they do not accurately reflect the risks associated with pregnancy in individuals with MS.

5. A nurse is caring for a client who is post-op day #1 after a total hip replacement. Although the client was alert with a normal affect in the morning, by lunchtime, the nurse notes the client is confused, has slurred speech, and is having trouble with her balance. Her blood glucose level is 48 mg/dl. What is the next action of the nurse?

A. Contact the physician immediately
B. Administer a bolus of 50 cc of D20W through the IV
C. Administer 10 units of regular insulin
D. Give the client 6 oz. of orange juice

Correct answer: D

Rationale: A client with a blood glucose level of 48 mg/dl is experiencing significant hypoglycemia, as manifested by confusion, balance difficulties, and slurred speech. The nurse should work to correct this situation as rapidly as possible. The first measure that can be performed quickly and will have fast results is to give the client something to eat or drink that contains glucose, such as 6 oz. of orange juice. Administering a bolus of D20W through the IV (Choice B) would be too aggressive and could lead to complications in this scenario. Administering regular insulin (Choice C) would further lower the blood glucose level, worsening the client's symptoms. Contacting the physician (Choice A) is important, but immediate intervention to raise the blood glucose level is crucial to address the client's hypoglycemia.