Labs CN

Question 2

What cranial nerve is CN III and what’s responsible for?

Answer 2

Oculomotor- coordinated eye movement, eyelid drop, pupil dialation.

Question 3

What’s CN IV responsible for

Answer 3

Trochlear - downward, inward eye movement.

Question 4

CN V and responsible for

Answer 4

Trigeminal - ophthalmic, maxillary, mandible

Question 5

CN VI and action

Answer 5

Abducens- eye movement, downward gaze.

Question 6

Name cranial nerves X-XII and what’s it responsible for.

Answer 6

X - vagus nerve, vital signs, vocal tone, swallowing
XI- accessory spinal - shoulder shrug, head turn, scapular winging
XII - hypoglossal tongue movements

Question 7

What cranial nerve is CN III and what’s responsible for?

Answer 7

Oculomotor- coordinated eye movement (smooth eye movement), eyelid elevation, pupil dialation, inward eye movement.

Question 8

What’s CN IV responsible for

Answer 8

Trochlear - downward, inward eye movement.

Question 9

CN V and responsible for

Answer 9

Trigeminal - ophthalmic, maxillary, mandible

Question 10

CN VI and action

Answer 10

Abducens- eye movement, downward gaze.

Question 11

CN VII

Answer 11

Facial nerve - facial expression

Question 12

CN VIII

Answer 12

Vestibulococlear - hearing and balance

Question 13

CN IX

Answer 13

Glosopharyngeal - gag reflex

Question 14

Normal Hgb level

Answer 14

Male -14-17
Female-12-16

Question 15

Reasons for elevated Hgb

Answer 15

Polycythemia, smoker, COPD, dehydration, prolonged tourniquets, transfusion

Question 16

Reasons for decreased Hgb

Answer 16

Blood loss, fluid overload (hemodilution), anemia, nutritional deficiency, renal insufficiency, aplastic anemia, phlebotomy

Question 17

Normal WBC level

Answer 17

5-10

Question 18

Elevated WBC cause

Answer 18

Infection, inflammation, mania, acute stress, leukemia

Question 19

Decreased WBC

Answer 19

Immunosuppression, medication induced, radiation, nutritional deficiency

Question 20

Normal platelets

Answer 20

140-400

Question 21

Decreased platelets

Answer 21

Bleeding, polycythemia, leukemia, inflammation, malignancy, chronic hypoxia

Question 22

Elevated platelets cause

Answer 22

Clumping, splenomegaly, aplastic anemia, leukemia, medication induced

Question 23

Normal neutrophil level

Answer 23

1800-8000

Question 24

Reasons increase neutrophils

Answer 24

Acute stress, inflammation, tumors, steroids, epinephrine, lithium, bleeding, seizures, myeloproliferative disorder.

Question 25

Reasons decreases neutrophils

Answer 25

*Medication- methotrexate, clozapine. Antipsychotics

*aplastic anemia, megaloblastic anemia (folate, B12 deficiency), margination (redistribution) hypersplenism, severe sepsis, viremia, aids, radiation therapy, immunosupression meds, uremia

Question 26

Normal basophil

Answer 26

0-200

Question 27

Normal eosinophil

Answer 27

0-600

Question 28

Normal lymphocyte

Answer 28

1000-5000

Question 29

Elevated lymphocytes

Answer 29

Viral infections, leukemia, thyrotoxicosis, allergic reaction, mania

Question 30

Lab values in dehydration

Answer 30

Increased creatinine, BUN, serum sodium

Question 31

Normal creatinine

Answer 31

0.6-1.3

Question 32

Normal BUN

Answer 32

7-18

Question 33

Normal Na+

Answer 33

136-145

Question 34

What should normal AST/ALT ratio be?

Answer 34

1.15 in normal adults (2:1 alcoholic liver disease)

Question 35

If AST/ALT ratio =1

Answer 35

=1 acute viral hepatitis or hepatotoxicity

Question 36

If AST/ALT ratio less than 1

Answer 36

Normal or NASH/NAFLD

Question 37

Normal ammonia level

Answer 37

9-33

Question 38

What elevates ammonia and what two meds combined cause a significant increase and why

Answer 38

Depakote, severe liver disease. Most common when depakote combined with amitryptyline and fluoxetine (inhibit metabolism of valpofic acid.