manual hematocrits are done

NCLEX-RN

NCLEX RN Predictor Exam

1. When are manual hematocrits done?

A. to monitor anemia
B. by using a microhematocrit tube.
C. to measure the percentage of plasma to cells.
D. All of the above.

Correct answer: D

Rationale: Manual hematocrits are performed to monitor anemia, which involves measuring the percentage of red blood cells in the blood. The process involves collecting blood in a microhematocrit tube, then centrifuging it to separate the plasma from the cells. By measuring the ratio of plasma to cells, healthcare providers can assess the patient's hematocrit level. Therefore, all the provided options are correct as they collectively describe the purpose and procedure of manual hematocrits.

2. A client is being assisted with ambulation in the hallway using a gait belt when they become dizzy and start to faint. What is the first action the nurse should take?

A. Stand behind the client and prepare to catch them if they fall
B. Assist the client to sit in the nearest chair or slide down along a wall
C. Grasp the client under the arms and pull them upward
D. Call for help from nearby staff

Correct answer: A

Rationale: If a client becomes dizzy and starts to faint while being assisted with ambulation, the nurse's first action should be to assist the client into a sitting position to prevent or reduce the impact of a fall. This can be done by guiding the client to sit in the nearest chair or sliding down along a wall for support. Option A is incorrect because standing behind the client may not prevent a fall and could potentially lead to injury. Option C is incorrect as pulling the client upward may worsen the situation. Option D, calling for help, is not the first action to take when the client is at risk of falling.

3. 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.

4. Which body plane divides the body into right and left sides?

A. Frontal Plane
B. Medial Plane
C. Median Plane
D. Transverse Plane

Correct answer: C

Rationale: The correct answer is the Median Plane, also known as the sagittal plane. It divides the body into right and left sides. The Frontal Plane, or coronal plane, divides the body into front and back sections. The Transverse Plane divides the body into superior (upper) and inferior (lower) sections. Therefore, choices A, B, and D are incorrect as they do not specifically divide the body into right and left sides.

5. Which of the following is a fat-soluble vitamin?

A. Vitamin C
B. Vitamin D
C. Vitamin B-6
D. Riboflavin

Correct answer: B

Rationale: The correct answer is Vitamin D. Fat-soluble vitamins are those that can be stored in the body, allowing excess amounts to be stored for later use. While this storage ability can help prevent deficiencies, it also poses a risk of toxicity. The fat-soluble vitamins are A, E, D, and K. Choice A, Vitamin C, is water-soluble, not fat-soluble. Choice C, Vitamin B-6, and Choice D, Riboflavin, are also water-soluble vitamins and not fat-soluble.