Page 31 - SSB MED EBOOK

Psychoneurosis. Mentally unstable and neurotic individuals are

unfit for commissioning. Juvenile and adult delinquency, history of

nervous breakdown or chronic ill health are causes for rejection.

Particular attention should be paid to such factors as unhappy

childhood, poor family background, truancy, juvenile and adult

delinquency, poor employment and social maladjustment records,

history of nervous break down or chronic ill-health, particularly if

these have interfered with employment in the past.

Organic Nervous Conditions. Any evident neurological deficit

should call for rejection.

Tremors. Tremors are rhythmic oscillatory movements of

reciprocally innervated muscle groups. Two categories are

recognized: normal or physiologic and abnormal or pathologic. Fine

tremor is present in all contracting muscle groups, it persists

throughout the waking state, the movement is fine between 8 to 13

Hz. Pathologic tremor is coarse, between 4 to 7 Hz and usually

affects the distal part of limbs. Gross tremors are generally due to

enhanced physiological causes where, at the same frequency, the

amplitude of the tremor is grossly enhanced and is elicited by

outstretching the arms and fingers which are spread apart. This

occurs in cases of excessive fright, anger, anxiety, intense physical

exertion, metabolic disturbances including hyperthyroidism,

alcohol withdrawal and toxic effects of lithium, smoking (nicotine)

and excessive tea, coffee. Other causes of coarse tremor are