to properly read a meniscus

NCLEX-RN

NCLEX RN Predictor Exam

1. To properly read a meniscus,

A. hold the measuring device at eye level and read the bottom of the curve of the liquid level
B. hold the measuring device at eye level and read the top of the curve of the liquid level where the liquid adheres to the walls of the container.
C. hold the measuring device at table level and, looking down into the measuring device, read the bottom of the curve of the liquid level.
D. hold the measuring device at table level and, looking down into the measuring device, read the top of the curve of the liquid level.

Correct answer: A

Rationale: To properly read a meniscus, it is essential to hold the measuring device at eye level to avoid parallax error. Reading the bottom of the curve of the liquid level is correct because the meniscus is the concave or convex curve at the liquid's surface. Choice B is incorrect because reading the top of the curve where the liquid adheres to the walls of the container can lead to inaccurate measurements. Choices C and D are incorrect as they suggest holding the device at table level, which can introduce parallax error and result in an incorrect reading.

2. In a 68-year-old man, a gradual loss of hearing is known as _____________.

A. presbycusis
B. xerostomia
C. myopia
D. presbyopia

Correct answer: A

Rationale: The correct answer is 'presbycusis.' Presbycusis is the age-related gradual loss of hearing ability, commonly seen in the elderly population. Xerostomia refers to dry mouth, myopia is nearsightedness, and presbyopia is the age-related loss of the eye's ability to focus on close objects. Given Mr. Roberts' age and symptom of gradual hearing loss, presbycusis is the most likely diagnosis. Xerostomia, myopia, and presbyopia do not match the sensory change described in the question, making them incorrect choices.

3. A client has become combative and is attempting to pull out his IV and take off his surgical dressings. The nurse receives an order to apply wrist restraints. Which action of the nurse signifies that restraints are being used safely?

A. The nurse ties the restraints in a square knot to prevent the client from untying them
B. The restraints are attached to a movable portion of the bed
C. The padded side of the restraint is applied next to the skin of the wrist
D. The nurse assesses the client's distal circulation every 24 hours

Correct answer: C

Rationale: Restraint use must prioritize the safety of the client. When applying restraints around the wrists, the padded side should be placed against the skin to help prevent skin breakdown. Additionally, restraints should be secured in quick-release knots to ensure they can be removed rapidly in case of an emergency. Choice A is incorrect as restraints should not be tied in a way that could prevent quick removal. Choice B is incorrect because restraints should not be attached to a movable part of the bed to avoid unintentional movement. Choice D is incorrect as assessing distal circulation is important but is not directly related to the safe application of restraints.

4. During an examination, a nurse notices a draining ulceration on a patient's lower leg. What is the most appropriate action in this situation?

A. Wash hands and then contact the physician.
B. Continue to examine the ulceration and then wash hands.
C. Wash hands, put on gloves, and continue with the examination of the ulceration.
D. Wash hands, proceed with the rest of the physical examination, and perform the examination of the leg ulceration last.

Correct answer: C

Rationale: In this scenario, the most appropriate action is to wash hands, put on gloves, and then continue examining the ulceration. Wearing gloves is crucial when there is a possibility of contact with body fluids, as in the case of a draining ulceration. Contacting the physician is not necessary at this point; the immediate focus should be on proper infection control by washing hands and wearing gloves. Changing the order of the examination is not recommended as it is important to follow a systematic approach to avoid missing any crucial assessments.

5. A client is complaining of pain in his right hand after surgery. The IV in his hand has slowed down, and the skin around the site is reddened and cool. The client reports localized pain in the hand and fingers. What is the most likely cause of this client's pain?

A. The client's IV is infiltrated
B. The client is experiencing phlebitis from the last drug administered
C. The client has a blood clot developing in the distal arteries of the wrist
D. The client's pain is associated with myocardial ischemia and he is having a heart attack

Correct answer: A

Rationale: Pain, cool skin, and edema at an IV injection site indicate IV infiltration. The reddened and cool skin around the IV site, along with localized pain and a slowed IV drip rate, are classic signs of infiltration. Infiltration occurs when IV fluids or medications enter the surrounding tissues instead of the vein, leading to potential tissue damage. Phlebitis is inflammation of a vein, not infiltration. A blood clot in the distal arteries of the wrist would not cause these specific symptoms. Myocardial ischemia and heart attack are unrelated to the client's localized hand pain and IV issues.