Medical Tests Medical Tests Certifications CEN Questions & Answers

• Question 151:

  You are preparing a teaching session on tuberculosis. What is one of the first symptoms that the group might notice in someone who has tuberculosis?

  A. Bloody, productive cough

  B. Cough with mucoid sputum

  C. Chest pain

  D. Dyspnea

  Correct Answer: B

  One of the first symptoms that would be notices would be cough with mucoid sputum. Late signs of tuberculosis would be bloody, productive cough, chest pain and dyspnea.

• Question 152:

  You are teaching a group of mothers how to apply permethrin (Elimite, Nix) for pediculosis capitus. Which of the following would be the correct application technique?

  A. Apply at bedtime and wash out in the morning.

  B. Apply before washing hair.

  C. Apply to hair avoiding scalp.

  D. Apply to hair for 10 minutes and then rinse.

  Correct Answer: D

  In order for permethrin (Elimite, Nix) to be effective it is important to following the instructions on the bottle. The hair must be washed, rinsed and towel dried. The hair and scalp should be completely saturated and allowed to sit for 10 minutes prior to rinsing.

• Question 153:

  You are providing a teaching session to a group of patients regarding skin cancer. Which of the following statements would you not want to include in this education?

  A. Wear sunscreen when engaged in outdoor activities.

  B. The body should be examined monthly for any lesions that appear suspicious.

  C. A hat, opaque clothing, and sunglasses should be worn when in the sun.

  D. Avoid sun exposure after 3pm.

  Correct Answer: D

  It would be incorrect to instruct the patients to avoid the sun after 3pm. The patients would want to avoid the sun between 11am and 3pm. All other statements are correct and should be taught to the patients.

• Question 154:

  You are conducting a teaching session for mothers at a local school on rubeola (measles). Which of the following would you not want to include in this education?

  A. Profuse runny nose, coughing and fever occur before the rash develops.

  B. The child may develop small, blue-white spots with a red base in the mouth

  C. Ears usually develop a rash first, which then spreads toward the feet.

  D. The communicable period usually ranges from 10 to 15 days after the rash appears.

  Correct Answer: D

  The communicable period for Rubeola (measles) is 4 to 5 days after the rash appears. The incubation period is 10-15 days. The blue-white spots found in the mouth during Rubeola are called Koplik's spots.

• Question 155:

  Which of the following would you want to include in an education session to the staff on HIV and AIDS?

  A. Newborn infants of HIV positive mothers usually test positive.

  B. The hematological system is usually attacked by HIV.

  C. With AIDS, T4 cells cannot form protective antibodies due to depleted B cells.

  D. T lymphocytes are destroyed because the virus attacks the immune system.

  Correct Answer: D

  T lymphocytes are destroyed because the virus attacks the immune system. Infants born to mothers positive for HIV usually test positive for HIV antibodies not HIV virus. HIV attacks the immune system, not the hematological system. T4 cells are depleted in numbers and can not signal B cells.

• Question 156:

  You are encouraging your postoperative patient to cough and take deep breaths. The patient questions why it is so important to do this. Your response would include the understanding that retaining pulmonary secretions can lead to:

  A. Fluid imbalance

  B. Carbon dioxide retention

  C. Pulmonary edema

  D. Pneumonia

  Correct Answer: D

  Coughing and deep breath exercises help prevent pneumonia in the postoperative patient. Pneumonia is inflammation of lung tissue that causes productive cough, dyspnea and crackles. Postoperative complications related to pneumonia can be prevented if the patient is encouraged to cough and breathe deeply.

• Question 157:

  The most appropriate place to check the pulse on a 1-month-old infant is:

  A. Brachial

  B. Carotid

  C. Popliteal

  D. Radial

  Correct Answer: A

  Brachial pulse is the appropriate pulse for a 1 month old infant. It is difficult to check the carotid pulse on an infant due to the short, fat neck. Popliteal and radial pulses are also difficult to palpate.

• Question 158:

  What is the proper technique for opening the airway on a trauma patient?

  A. Head tilt-chin lift

  B. Flexed position

  C. Modified head tilt-chin lift

  D. Jaw thrust maneuver

  Correct Answer: D

  To open the airway of any patient that might have a neck injury the nurse would perform a jaw thrust maneuver. All of the other options do not protect the neck from further injury.

• Question 159:

  The correct hand placement for chest compressions is the:

  A. Lower third of sternum

  B. Upper half of the sternum

  C. Upper third of the sternum

  D. Lower half of the sternum

  Correct Answer: D

  The correct hand placement for chest compressions is the lower half of the sternum. To determine the proper placement the nurse would want to locate the notch where the rib margin meets the sternum. Place the middle finger on the notch and index finger next to it. Next place the heel of the opposite hand on the lower half of the sternum close to the index finger. Place the first hand on top of the hand on the sternum and begin chest compressions.

• Question 160:

  You are preparing to give potassium chloride 30 mEq in 1000 ml of normal saline over 10 hours. The medication label reads 40 mEq per 20 mL. How many milliliters of potassium chloride do you need to administer the correct dose?

  A. 10 mL

  B. 15 mL

  C. 20 mL

  D. 50 mL

  Correct Answer: B

  The nurse would prepare 15 ml of potassium chloride.

  Desired dose: 30 mEq

  Available concentration: 40 mEq (Units) per 20 mL (Volume)