Mind-numbing Numbers Flashcards by Karla Nable-Llanes

Q

TSH normal value

A

0.5 to 5.0 mIU/L

American Association of Clinical Endocrinologists guidelines changed their normal range for TSH to 0.3 - 3.04 mIU/L

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Q

Free T4 normal value

A

0.9 to 1.9 ng/dL

or 12 to 30 pmol/L

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Q

Free T3 normal value

A

130 to 450 pg/dl

or 2.0 to 7.0 pmol/L

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Q

Total T4 normal value

A

5.0 to 12.0μg/dL

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Q

Total T3 normal value

A

60 to 180 ng/dL

or 0.92 to 2.76 nmol/L

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Q

Ionized Calcium normal value

A

4.4-5.2 mg/dL

or 1.1-1.3 mmol/L

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Q

Total Calcium normal value

A

8.6-10.3 mg/dL

or 2.2-2.6 mmol/L

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Q

Serum Thyroglobulin normal value

A

5-25 ng/mL

alternate source: 0-60 ng/mL

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Q

Thyroxine-binding globulin (TBG) in serum normal value

A

Electrophoresis:
10 - 24 mg/dL

Radioimmunoassay (RAI):
1.3 - 2.0 mg/dL

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Q

Daily iodine requirement

A

100 mcg per day

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Q

Levotyroxine full replacement dose for young, otherwise healthy adults (nonmalignant conditions)

A

1.6 μg/kg/day

repeat TSH measurements with dose adjustment every 4 to 6 weeks (four to six half-lives of T4)

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Q

Levotyroxine full replacement dose for known coronary disease, those with multiple coronary risk factors, and elderly patients who may have previously silent coronary disease

When to repeat testing?

A

conservative therapy: 25 μg/day initial dose

repeat TSH measurements with dose adjustment every 4 to 6 weeks (four to six half-lives of T4)

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Q

Levotyroxine full replacement dose for post-thyroidectomy for thyroid CA

A

1 μg/kg/day

* mean T4 dose required to achieve euthyroidism is generally higher

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Q

DISTANCE TO ESOPHAGEAL LANDMARKS:

at birth

A

cricopharyngeus - 7
aorta - 12
left bronchus - 13
hiatus - 17
cardia - 18
greater curvature - 23

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Q

DISTANCE TO ESOPHAGEAL LANDMARKS:

2 years old

A

cricopharyngeus - 9
aorta - 14
left bronchus - 15
hiatus - 18
cardia - 19
greater curvature - 27

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Q

DISTANCE TO ESOPHAGEAL LANDMARKS:

3 years old

A

cricopharyngeus - 10
aorta - 15
left bronchus - 16
hiatus - 21
cardia - 22
greater curvature - 30

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Q

DISTANCE TO ESOPHAGEAL LANDMARKS:

6 years old

A

cricopharyngeus - 11
aorta - 16
left bronchus - 18
hiatus - 24
cardia - 25
greater curvature - 33

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Q

DISTANCE TO ESOPHAGEAL LANDMARKS:

10 years old

A

cricopharyngeus - 12
aorta - 17
left bronchus - 20
hiatus - 26
cardia - 27
greater curvature - 36

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Q

DISTANCE TO ESOPHAGEAL LANDMARKS:

14 years old

A

cricopharyngeus - 14
aorta - 21
left bronchus - 24
hiatus - 33
cardia - 34
greater curvature - 43

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Q

DISTANCE TO ESOPHAGEAL LANDMARKS:

adult

A

cricopharyngeus - 16
aorta - 23
left bronchus - 27
hiatus - 38
cardia - 40
greater curvature - 53

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Q

resonant frequency of concha

Study These Flashcards

A

around 5300 Hz

Q

resonant frequency of external auditory canal

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A

around 3000 Hz

Q

What is the minimum Air Bone Gap a 512 Hz Tuning Fork can detect when used in Rinne Test ?

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A

minimum of 30dB (mild CHL)

Q

What is the minimum Air Bone Gap a 256 Hz Tuning Fork can detect when used in Rinne Test ?

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A

minimum of 15dB

What is the minimum Air Bone Gap a 1026 Hz Tuning Fork can detect when used in Rinne Test ?

minimum of 45dB (Moderate CHL)

Weber is a sensitive test. How many decibels difference between the ears is sufficient to lateralise the Weber?

5 dB difference

adult ear canal volume

0.5 - 2 cm3

children ear canal volume

0.3 - 1.5 cm3

Nasofrontal angle

115-135 degrees

Normal Intercanthal Distance

Female: 25.5 to 37.5 cm Male: 26.5 to 38.5 cm

Nasofacial Relationship

Female: 95-110 degrees Male: 90-95 degrees

Nasofacial Angle

30-40 degrees (ideal 36)

Nasomental Angle

120-132 degrees | lips should be posterior to this line (4mm upper lip; 2mm lower lip)

Nasal Rotation and Projection

Simon's Method : Goode Method : 0.55-0.66 ratio 3-4-5 Triangle (Lanser & Crumley) : hypothenuse in nasal length (5), short arm is projection (3) Baum ratio : 2:1 (nasion-subnasale:perpendicular line to tip) Powell and Humphries: 2.8:1

alar to tip ratio

1:1

Columella

3-5mm

Mentocervical angle

80-95 degrees

Ear protrusion

20-30 degrees

helix to mastoid skin

15-25 mm

Maximum phonation time N.V.

15-25 seconds (female) | 25-35 seconds (male)

Nasal Septum measurement in Filipinos

25. 9 mm (cephalic edge) 22. 3 mm (dorsum edge) 21. 4 mm (caudal edge) 33. 1 mm (ventral edge)

mucus blanket renewal

10-15 mins

ciliary beat frequency

10-15 secs

cilia density

200 cilia/um2

normal mucociliary clearance

less than 30mins

olfactory epithelium area in young adults

2 to 5 cm2 Cummings 7E p587

sound travels at a rate of ____ at dry air

340 m/s

Holdaway's H angle

ideally 10 degrees describes degree of soft tissue protrusion of the maxilla relative to the mandible nasion-pogonion | pogonion-most anterior portion of lip

Presence of an air-fluid level or a thickening of the prevertebral tissue at C2 of more than _____ in a child or more than ___ in an adult indicate retropharyngeal infection.

ADULT > 7mm | CHILD > 5mm

Presence of an air-fluid level or a thickening of the prevertebral tissue at C6 of more than _____ in a child or more than ___ in an adult indicate retropharyngeal infection.

ADULT > 22mm | CHILD > 14mm