Pregunta: QUESTION 11 1. Which of the following things is not true? The centrifuge must first be loaded and balanced symmetrically before spinning. Angle Head centrifuge is the best centrifuge for urinalysis department Never use a tube alone.

QUESTION 11

1. Which of the following things is not true?

1. The centrifuge must first be loaded and balanced symmetrically before spinning.

2. Angle Head centrifuge is the best centrifuge for urinalysis department

3. Never use a tube alone.

4. Always close the centrifuge door.

5. Care of a centrifuge includes daily cleaning of any spills

QUESTION 12

1. Two rings etched into the mouthpiece of a pipet indicate that the pipet is a blow pipet.

True

False

QUESTION 13

13. How many minutes is an acceptable time for a centrifuge to spin blood specimens?

1. 10 - 15 minutes

2. 5 - 8 minutes

3. 20 - 25 minutes

4. 25 - 30 minutes

QUESTION 14

1. What are the types of centrifuges?

swinging-bucket or angled

Fixed-head rotor

Ultra-centrifuges

all the answer are correct

QUESTION 15

1. A pipette should be cleaned:

1. before lowering the meniscus to the calibration mark
2. after lowering the meniscus to the calibration mark
3. never if it is a volumetric pipet
4. only if it is a TC (to contain) pipet

QUESTION 16

1. The National Institute of Standard and Technology requires that volumetric pipets and flasks be certified as:

1. Class A

2. Class B

3. Class C

4. Class D

QUESTION 17

1. Se pueden utilizar micropipetas y pipetas de transferencia con la misma precisión.

True

False

QUESTION 18

1. Centrifuges spin blood specimens in a range from __________?

1. 1000 - 2000g

2. 2000 - 3000g

3. 3000 - 4000g

4. 4000 - 5000g

QUESTION 19

1. The Erlenmeyer flasks are used to prepare standards solutions.

True

False

QUESTION 20

1. Los artículos de plástico sustituyen a la cristalería en el laboratorio clínico, debido a la alta resistencia a la corrosión y la rotura.

Verdadero

Falso

PREGUNTA 21

1. Un procedimiento de laboratorio requiere medir 25ml de una solución en un cilindro graduado. ¿Cómo se debe leer el cilindro graduado?

1. Sostenga el cilindro graduado para que el menisco esté ligeramente por encima del nivel de los ojos, luego asegúrese de que la parte inferior del menisco esté a 25ml.

2. Agáchate hasta que tu cabeza esté al mismo nivel que la mesa, luego busca asegurarte de que la parte inferior del menisco esté a 25ml.

3. Sostenga el cilindro graduado para que el menisco esté a la altura de los ojos, luego asegúrese de que la parte inferior del menisco esté a 25ml.

4. Sostenga el cilindro graduado para que el menisco esté ligeramente por debajo del nivel de los ojos, luego asegúrese de que la parte inferior del menisco esté a 25ml.

QUESTION 22

1. The Medical Technologist needs to prepare a reagent. She needs exactly 10mL of phenyllithium. Which measuring tool would be the most accurate to measure out that liquid?

1. 0mL syringe

2. 10mL volumetric pipet

3. 10mL graduated cylinder

4. 25mL watch glass

5. 100mL beaker