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[接上页] (5) An applicant placed in category E shall be granted a medical fitness certificate with specified restrictions operating for a specified length of time and subject to the maximum period of validity specified in section 8 of this Regulation. (6) An applicant who fails to satisfy an approved medical practitioner only in respect of colour visual standards shall be granted a certificate completed only as to Part A. Medical Standards 1. General Any infectious or contagious disease-D. Malignant Neoplasms-B. Note: Consideration can be given to passing cases of rodent ulcers which have responded satisfactorily to treatment. 2. Ear, Nose & Throat (a) Ear Acute and Chronic Otitis Externa-D. Should be completely healed before returning to sea. Care is required in passing fit for tropics. Acute Otitis Media-D. Chronic Otitis Media-D. May become A or E after satisfactory treatment or surgery. Special care is required in passing fit for tropics or where air travel is involved. Loss of hearing-A degree sufficient to interfere with efficiency-B. -Unilateral complete loss of hearing-B.Meniere's Disease-B. Notes: (1) No audio-metric standard has been set for the purposes of this Regulation. (2) Impaired hearing acuity should be referred for full investigation by an ENT surgeon. (3) The use of a satisfactory hearing aid at work by certain catering department personnel can be accepted where not hearing an instruction would not result in a danger to the seafarer or others. The hearing aid should be sufficiently effective to allow communication at normal conversational tones. (4) The use of a hearing aid by those working in, or associated with, the deck or engine room departments, including electricians and radio officers, should not be accepted. (b) Nose Nasal obstruction. Septal abnormality or polypus-D. Acute sinusitis-D. Chronic sinusitis-if disabling and frequently relapsing-B. (c) Throat A history of frequent sore throats or unhealthy tonsils with adenitis-D. (d) Speech Defects If likely to render seafarer inefficient-B. 3. Respiratory System The respiratory system should be free from acute or chronic disease causing disability. Chronic Bronchitis and/or Emphysema-Category depends on severity. Mild uncomplicated cases with good exercise tolerance may be A, but cases with recurring illness causing disability should be B. Bronchial Asthma-B. Pulmonary Tuberculosis-C. Most cases are unsuitable for further seafaring but if the approved medical practitioner is satisfied that the lesion is firmly healed, the radiological appearance is acceptable and the applicant has completed a full course of chemotherapy, further service can be considered. Cases where either one or both lungs have been seriously affected are never suitable for further service. All relapsed cases will be B. 4. Cardiovascular System The heart and blood vessels must be healthy. There should be no history, signs and/or symptoms of heart failure. There should be no significant abnormality of rate or rhythm or disorder of conduction. There must be no significant disease of the haemopoietic organs. A material degree of general arteriosclerosis-B. A history of coronary thrombosis or evidence of coronary artery disease-B. (All cases that have required coronary artery bypass surgery come within this category). A history of intermittent claudication, including any case where vascular surgery was required-B. Any cerebral vascular accident-B. Any cardiac valve replacement-B. Hypertension-all cases D for investigation. Notes: (1) There should be no evidence of left ventricular hypertrophy and/or strain on electrocardiography. The blood urea and chest X-ray should be normal. (2) The maximum acceptable level is 170 mm systolic, 100 mm diastolic, untreated. The diastolic pressure is to be measured at the fifth sound. Cases treated with hypotensive drugs or diuretics are unsuitable for further seafaring. The approved medical practitioner must establish that the use of these drugs is essential and alternative acceptable therapy is not possible. All cases should be kept under regular supervision. 5. Disease of Veins Varicocele-symptomless-A. With symptoms-D for surgical opinion. Haemorrhoids-not prolapsed, bleeding or causing symptoms-A. Other cases should be D until satisfactory treatment has been obtained. Varicose Veins-slight degree-A. Moderate degree without symptoms or oedema may be A, but with symptoms D for treatment. Recurrent after operation, with symptoms-B. Chronic varicose ulceration-B. Thin unhealthy scars of healed ulcers or unhealthy skin or varicose eczema may be B if breakdown is thought likely. Deep vein thrombosis or recurrent thrombophlebitis-B. 6. Gastro-Intestinal System Mouth or gum infection-D. Dental defects-D. Seafarers should be dentally fit. Gastro-intestinal Disease or Disorders-slight case-D. Severe or recurrent and those requiring special diet and/or regular supervision-B. Peptic Ulceration-D for investigation. |